Identifier
- St000118: Binary trees ⟶ ℤ
Values
=>
Cc0010;cc-rep
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[[[[.,.],.],.],[[.,.],[.,.]]]=>1
[[[[.,.],.],.],[[.,[.,.]],.]]=>0
[[[[.,.],.],.],[[[.,.],.],.]]=>0
[[.,[.,[.,[.,.]]]],[.,[.,.]]]=>3
[[.,[.,[.,[.,.]]]],[[.,.],.]]=>2
[[.,[.,[[.,.],.]]],[.,[.,.]]]=>2
[[.,[.,[[.,.],.]]],[[.,.],.]]=>1
[[.,[[.,.],[.,.]]],[.,[.,.]]]=>2
[[.,[[.,.],[.,.]]],[[.,.],.]]=>1
[[.,[[.,[.,.]],.]],[.,[.,.]]]=>1
[[.,[[.,[.,.]],.]],[[.,.],.]]=>0
[[.,[[[.,.],.],.]],[.,[.,.]]]=>1
[[.,[[[.,.],.],.]],[[.,.],.]]=>0
[[[.,.],[.,[.,.]]],[.,[.,.]]]=>2
[[[.,.],[.,[.,.]]],[[.,.],.]]=>1
[[[.,.],[[.,.],.]],[.,[.,.]]]=>1
[[[.,.],[[.,.],.]],[[.,.],.]]=>0
[[[.,[.,.]],[.,.]],[.,[.,.]]]=>1
[[[.,[.,.]],[.,.]],[[.,.],.]]=>0
[[[[.,.],.],[.,.]],[.,[.,.]]]=>1
[[[[.,.],.],[.,.]],[[.,.],.]]=>0
[[[.,[.,[.,.]]],.],[.,[.,.]]]=>2
[[[.,[.,[.,.]]],.],[[.,.],.]]=>1
[[[.,[[.,.],.]],.],[.,[.,.]]]=>1
[[[.,[[.,.],.]],.],[[.,.],.]]=>0
[[[[.,.],[.,.]],.],[.,[.,.]]]=>1
[[[[.,.],[.,.]],.],[[.,.],.]]=>0
[[[[.,[.,.]],.],.],[.,[.,.]]]=>1
[[[[.,[.,.]],.],.],[[.,.],.]]=>0
[[[[[.,.],.],.],.],[.,[.,.]]]=>1
[[[[[.,.],.],.],.],[[.,.],.]]=>0
[[.,[.,[.,[.,[.,.]]]]],[.,.]]=>3
[[.,[.,[.,[[.,.],.]]]],[.,.]]=>2
[[.,[.,[[.,.],[.,.]]]],[.,.]]=>2
[[.,[.,[[.,[.,.]],.]]],[.,.]]=>1
[[.,[.,[[[.,.],.],.]]],[.,.]]=>1
[[.,[[.,.],[.,[.,.]]]],[.,.]]=>2
[[.,[[.,.],[[.,.],.]]],[.,.]]=>1
[[.,[[.,[.,.]],[.,.]]],[.,.]]=>1
[[.,[[[.,.],.],[.,.]]],[.,.]]=>1
[[.,[[.,[.,[.,.]]],.]],[.,.]]=>1
[[.,[[.,[[.,.],.]],.]],[.,.]]=>0
[[.,[[[.,.],[.,.]],.]],[.,.]]=>0
[[.,[[[.,[.,.]],.],.]],[.,.]]=>0
[[.,[[[[.,.],.],.],.]],[.,.]]=>0
[[[.,.],[.,[.,[.,.]]]],[.,.]]=>2
[[[.,.],[.,[[.,.],.]]],[.,.]]=>1
[[[.,.],[[.,.],[.,.]]],[.,.]]=>1
[[[.,.],[[.,[.,.]],.]],[.,.]]=>0
[[[.,.],[[[.,.],.],.]],[.,.]]=>0
[[[.,[.,.]],[.,[.,.]]],[.,.]]=>1
[[[.,[.,.]],[[.,.],.]],[.,.]]=>0
[[[[.,.],.],[.,[.,.]]],[.,.]]=>1
[[[[.,.],.],[[.,.],.]],[.,.]]=>0
[[[.,[.,[.,.]]],[.,.]],[.,.]]=>1
[[[.,[[.,.],.]],[.,.]],[.,.]]=>0
[[[[.,.],[.,.]],[.,.]],[.,.]]=>0
[[[[.,[.,.]],.],[.,.]],[.,.]]=>0
[[[[[.,.],.],.],[.,.]],[.,.]]=>0
[[[.,[.,[.,[.,.]]]],.],[.,.]]=>2
[[[.,[.,[[.,.],.]]],.],[.,.]]=>1
[[[.,[[.,.],[.,.]]],.],[.,.]]=>1
[[[.,[[.,[.,.]],.]],.],[.,.]]=>0
[[[.,[[[.,.],.],.]],.],[.,.]]=>0
[[[[.,.],[.,[.,.]]],.],[.,.]]=>1
[[[[.,.],[[.,.],.]],.],[.,.]]=>0
[[[[.,[.,.]],[.,.]],.],[.,.]]=>0
[[[[[.,.],.],[.,.]],.],[.,.]]=>0
[[[[.,[.,[.,.]]],.],.],[.,.]]=>1
[[[[.,[[.,.],.]],.],.],[.,.]]=>0
[[[[[.,.],[.,.]],.],.],[.,.]]=>0
[[[[[.,[.,.]],.],.],.],[.,.]]=>0
[[[[[[.,.],.],.],.],.],[.,.]]=>0
[[.,[.,[.,[.,[.,[.,.]]]]]],.]=>4
[[.,[.,[.,[.,[[.,.],.]]]]],.]=>3
[[.,[.,[.,[[.,.],[.,.]]]]],.]=>3
[[.,[.,[.,[[.,[.,.]],.]]]],.]=>2
[[.,[.,[.,[[[.,.],.],.]]]],.]=>2
[[.,[.,[[.,.],[.,[.,.]]]]],.]=>3
[[.,[.,[[.,.],[[.,.],.]]]],.]=>2
[[.,[.,[[.,[.,.]],[.,.]]]],.]=>2
[[.,[.,[[[.,.],.],[.,.]]]],.]=>2
[[.,[.,[[.,[.,[.,.]]],.]]],.]=>2
[[.,[.,[[.,[[.,.],.]],.]]],.]=>1
[[.,[.,[[[.,.],[.,.]],.]]],.]=>1
[[.,[.,[[[.,[.,.]],.],.]]],.]=>1
[[.,[.,[[[[.,.],.],.],.]]],.]=>1
[[.,[[.,.],[.,[.,[.,.]]]]],.]=>3
[[.,[[.,.],[.,[[.,.],.]]]],.]=>2
[[.,[[.,.],[[.,.],[.,.]]]],.]=>2
[[.,[[.,.],[[.,[.,.]],.]]],.]=>1
[[.,[[.,.],[[[.,.],.],.]]],.]=>1
[[.,[[.,[.,.]],[.,[.,.]]]],.]=>2
[[.,[[.,[.,.]],[[.,.],.]]],.]=>1
[[.,[[[.,.],.],[.,[.,.]]]],.]=>2
[[.,[[[.,.],.],[[.,.],.]]],.]=>1
[[.,[[.,[.,[.,.]]],[.,.]]],.]=>2
[[.,[[.,[[.,.],.]],[.,.]]],.]=>1
[[.,[[[.,.],[.,.]],[.,.]]],.]=>1
[[.,[[[.,[.,.]],.],[.,.]]],.]=>1
[[.,[[[[.,.],.],.],[.,.]]],.]=>1
[[.,[[.,[.,[.,[.,.]]]],.]],.]=>2
[[.,[[.,[.,[[.,.],.]]],.]],.]=>1
[[.,[[.,[[.,.],[.,.]]],.]],.]=>1
[[.,[[.,[[.,[.,.]],.]],.]],.]=>0
[[.,[[.,[[[.,.],.],.]],.]],.]=>0
[[.,[[[.,.],[.,[.,.]]],.]],.]=>1
[[.,[[[.,.],[[.,.],.]],.]],.]=>0
[[.,[[[.,[.,.]],[.,.]],.]],.]=>0
[[.,[[[[.,.],.],[.,.]],.]],.]=>0
[[.,[[[.,[.,[.,.]]],.],.]],.]=>1
[[.,[[[.,[[.,.],.]],.],.]],.]=>0
[[.,[[[[.,.],[.,.]],.],.]],.]=>0
[[.,[[[[.,[.,.]],.],.],.]],.]=>0
[[.,[[[[[.,.],.],.],.],.]],.]=>0
[[[.,.],[.,[.,[.,[.,.]]]]],.]=>3
[[[.,.],[.,[.,[[.,.],.]]]],.]=>2
[[[.,.],[.,[[.,.],[.,.]]]],.]=>2
[[[.,.],[.,[[.,[.,.]],.]]],.]=>1
[[[.,.],[.,[[[.,.],.],.]]],.]=>1
[[[.,.],[[.,.],[.,[.,.]]]],.]=>2
[[[.,.],[[.,.],[[.,.],.]]],.]=>1
[[[.,.],[[.,[.,.]],[.,.]]],.]=>1
[[[.,.],[[[.,.],.],[.,.]]],.]=>1
[[[.,.],[[.,[.,[.,.]]],.]],.]=>1
[[[.,.],[[.,[[.,.],.]],.]],.]=>0
[[[.,.],[[[.,.],[.,.]],.]],.]=>0
[[[.,.],[[[.,[.,.]],.],.]],.]=>0
[[[.,.],[[[[.,.],.],.],.]],.]=>0
[[[.,[.,.]],[.,[.,[.,.]]]],.]=>2
[[[.,[.,.]],[.,[[.,.],.]]],.]=>1
[[[.,[.,.]],[[.,.],[.,.]]],.]=>1
[[[.,[.,.]],[[.,[.,.]],.]],.]=>0
[[[.,[.,.]],[[[.,.],.],.]],.]=>0
[[[[.,.],.],[.,[.,[.,.]]]],.]=>2
[[[[.,.],.],[.,[[.,.],.]]],.]=>1
[[[[.,.],.],[[.,.],[.,.]]],.]=>1
[[[[.,.],.],[[.,[.,.]],.]],.]=>0
[[[[.,.],.],[[[.,.],.],.]],.]=>0
[[[.,[.,[.,.]]],[.,[.,.]]],.]=>2
[[[.,[.,[.,.]]],[[.,.],.]],.]=>1
[[[.,[[.,.],.]],[.,[.,.]]],.]=>1
[[[.,[[.,.],.]],[[.,.],.]],.]=>0
[[[[.,.],[.,.]],[.,[.,.]]],.]=>1
[[[[.,.],[.,.]],[[.,.],.]],.]=>0
[[[[.,[.,.]],.],[.,[.,.]]],.]=>1
[[[[.,[.,.]],.],[[.,.],.]],.]=>0
[[[[[.,.],.],.],[.,[.,.]]],.]=>1
[[[[[.,.],.],.],[[.,.],.]],.]=>0
[[[.,[.,[.,[.,.]]]],[.,.]],.]=>2
[[[.,[.,[[.,.],.]]],[.,.]],.]=>1
[[[.,[[.,.],[.,.]]],[.,.]],.]=>1
[[[.,[[.,[.,.]],.]],[.,.]],.]=>0
[[[.,[[[.,.],.],.]],[.,.]],.]=>0
[[[[.,.],[.,[.,.]]],[.,.]],.]=>1
[[[[.,.],[[.,.],.]],[.,.]],.]=>0
[[[[.,[.,.]],[.,.]],[.,.]],.]=>0
[[[[[.,.],.],[.,.]],[.,.]],.]=>0
[[[[.,[.,[.,.]]],.],[.,.]],.]=>1
[[[[.,[[.,.],.]],.],[.,.]],.]=>0
[[[[[.,.],[.,.]],.],[.,.]],.]=>0
[[[[[.,[.,.]],.],.],[.,.]],.]=>0
[[[[[[.,.],.],.],.],[.,.]],.]=>0
[[[.,[.,[.,[.,[.,.]]]]],.],.]=>3
[[[.,[.,[.,[[.,.],.]]]],.],.]=>2
[[[.,[.,[[.,.],[.,.]]]],.],.]=>2
[[[.,[.,[[.,[.,.]],.]]],.],.]=>1
[[[.,[.,[[[.,.],.],.]]],.],.]=>1
[[[.,[[.,.],[.,[.,.]]]],.],.]=>2
[[[.,[[.,.],[[.,.],.]]],.],.]=>1
[[[.,[[.,[.,.]],[.,.]]],.],.]=>1
[[[.,[[[.,.],.],[.,.]]],.],.]=>1
[[[.,[[.,[.,[.,.]]],.]],.],.]=>1
[[[.,[[.,[[.,.],.]],.]],.],.]=>0
[[[.,[[[.,.],[.,.]],.]],.],.]=>0
[[[.,[[[.,[.,.]],.],.]],.],.]=>0
[[[.,[[[[.,.],.],.],.]],.],.]=>0
[[[[.,.],[.,[.,[.,.]]]],.],.]=>2
[[[[.,.],[.,[[.,.],.]]],.],.]=>1
[[[[.,.],[[.,.],[.,.]]],.],.]=>1
[[[[.,.],[[.,[.,.]],.]],.],.]=>0
[[[[.,.],[[[.,.],.],.]],.],.]=>0
[[[[.,[.,.]],[.,[.,.]]],.],.]=>1
[[[[.,[.,.]],[[.,.],.]],.],.]=>0
[[[[[.,.],.],[.,[.,.]]],.],.]=>1
[[[[[.,.],.],[[.,.],.]],.],.]=>0
[[[[.,[.,[.,.]]],[.,.]],.],.]=>1
[[[[.,[[.,.],.]],[.,.]],.],.]=>0
[[[[[.,.],[.,.]],[.,.]],.],.]=>0
[[[[[.,[.,.]],.],[.,.]],.],.]=>0
[[[[[[.,.],.],.],[.,.]],.],.]=>0
[[[[.,[.,[.,[.,.]]]],.],.],.]=>2
[[[[.,[.,[[.,.],.]]],.],.],.]=>1
[[[[.,[[.,.],[.,.]]],.],.],.]=>1
[[[[.,[[.,[.,.]],.]],.],.],.]=>0
[[[[.,[[[.,.],.],.]],.],.],.]=>0
[[[[[.,.],[.,[.,.]]],.],.],.]=>1
[[[[[.,.],[[.,.],.]],.],.],.]=>0
[[[[[.,[.,.]],[.,.]],.],.],.]=>0
[[[[[[.,.],.],[.,.]],.],.],.]=>0
[[[[[.,[.,[.,.]]],.],.],.],.]=>1
[[[[[.,[[.,.],.]],.],.],.],.]=>0
[[[[[[.,.],[.,.]],.],.],.],.]=>0
[[[[[[.,[.,.]],.],.],.],.],.]=>0
[[[[[[[.,.],.],.],.],.],.],.]=>0
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Description
The number of occurrences of the contiguous pattern [.,[.,[.,.]]] in a binary tree.
oeis:A001006 counts binary trees avoiding this pattern.
oeis:A001006 counts binary trees avoiding this pattern.
References
[1] Donaghey, R., Shapiro, L. W. Motzkin numbers MathSciNet:0505544
[2] Rowland, E. S. Pattern avoidance in binary trees MathSciNet:2645188 arXiv:0809.0488
[2] Rowland, E. S. Pattern avoidance in binary trees MathSciNet:2645188 arXiv:0809.0488
Code
(* in Mathematica *) tree = {{{{}, {}}, {{}, {}}}, {{{}, {}}, {{}, {}}}}; Count[tree, {{___}, {{___}, {{___}, {___}}}}, {0, Infinity}]
Created
Jun 18, 2013 at 16:59 by Eric Rowland
Updated
Oct 17, 2015 at 11:05 by Christian Stump
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