Identifier
- St000121: Binary trees ⟶ ℤ
Values
=>
Cc0010;cc-rep
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[[[[.,.],.],.],[[.,.],[.,.]]]=>0
[[[[.,.],.],.],[[.,[.,.]],.]]=>0
[[[[.,.],.],.],[[[.,.],.],.]]=>0
[[.,[.,[.,[.,.]]]],[.,[.,.]]]=>1
[[.,[.,[.,[.,.]]]],[[.,.],.]]=>1
[[.,[.,[[.,.],.]]],[.,[.,.]]]=>0
[[.,[.,[[.,.],.]]],[[.,.],.]]=>0
[[.,[[.,.],[.,.]]],[.,[.,.]]]=>0
[[.,[[.,.],[.,.]]],[[.,.],.]]=>0
[[.,[[.,[.,.]],.]],[.,[.,.]]]=>0
[[.,[[.,[.,.]],.]],[[.,.],.]]=>0
[[.,[[[.,.],.],.]],[.,[.,.]]]=>0
[[.,[[[.,.],.],.]],[[.,.],.]]=>0
[[[.,.],[.,[.,.]]],[.,[.,.]]]=>0
[[[.,.],[.,[.,.]]],[[.,.],.]]=>0
[[[.,.],[[.,.],.]],[.,[.,.]]]=>0
[[[.,.],[[.,.],.]],[[.,.],.]]=>0
[[[.,[.,.]],[.,.]],[.,[.,.]]]=>0
[[[.,[.,.]],[.,.]],[[.,.],.]]=>0
[[[[.,.],.],[.,.]],[.,[.,.]]]=>0
[[[[.,.],.],[.,.]],[[.,.],.]]=>0
[[[.,[.,[.,.]]],.],[.,[.,.]]]=>0
[[[.,[.,[.,.]]],.],[[.,.],.]]=>0
[[[.,[[.,.],.]],.],[.,[.,.]]]=>0
[[[.,[[.,.],.]],.],[[.,.],.]]=>0
[[[[.,.],[.,.]],.],[.,[.,.]]]=>0
[[[[.,.],[.,.]],.],[[.,.],.]]=>0
[[[[.,[.,.]],.],.],[.,[.,.]]]=>0
[[[[.,[.,.]],.],.],[[.,.],.]]=>0
[[[[[.,.],.],.],.],[.,[.,.]]]=>0
[[[[[.,.],.],.],.],[[.,.],.]]=>0
[[.,[.,[.,[.,[.,.]]]]],[.,.]]=>2
[[.,[.,[.,[[.,.],.]]]],[.,.]]=>1
[[.,[.,[[.,.],[.,.]]]],[.,.]]=>1
[[.,[.,[[.,[.,.]],.]]],[.,.]]=>0
[[.,[.,[[[.,.],.],.]]],[.,.]]=>0
[[.,[[.,.],[.,[.,.]]]],[.,.]]=>1
[[.,[[.,.],[[.,.],.]]],[.,.]]=>0
[[.,[[.,[.,.]],[.,.]]],[.,.]]=>0
[[.,[[[.,.],.],[.,.]]],[.,.]]=>0
[[.,[[.,[.,[.,.]]],.]],[.,.]]=>0
[[.,[[.,[[.,.],.]],.]],[.,.]]=>0
[[.,[[[.,.],[.,.]],.]],[.,.]]=>0
[[.,[[[.,[.,.]],.],.]],[.,.]]=>0
[[.,[[[[.,.],.],.],.]],[.,.]]=>0
[[[.,.],[.,[.,[.,.]]]],[.,.]]=>1
[[[.,.],[.,[[.,.],.]]],[.,.]]=>0
[[[.,.],[[.,.],[.,.]]],[.,.]]=>0
[[[.,.],[[.,[.,.]],.]],[.,.]]=>0
[[[.,.],[[[.,.],.],.]],[.,.]]=>0
[[[.,[.,.]],[.,[.,.]]],[.,.]]=>0
[[[.,[.,.]],[[.,.],.]],[.,.]]=>0
[[[[.,.],.],[.,[.,.]]],[.,.]]=>0
[[[[.,.],.],[[.,.],.]],[.,.]]=>0
[[[.,[.,[.,.]]],[.,.]],[.,.]]=>0
[[[.,[[.,.],.]],[.,.]],[.,.]]=>0
[[[[.,.],[.,.]],[.,.]],[.,.]]=>0
[[[[.,[.,.]],.],[.,.]],[.,.]]=>0
[[[[[.,.],.],.],[.,.]],[.,.]]=>0
[[[.,[.,[.,[.,.]]]],.],[.,.]]=>1
[[[.,[.,[[.,.],.]]],.],[.,.]]=>0
[[[.,[[.,.],[.,.]]],.],[.,.]]=>0
[[[.,[[.,[.,.]],.]],.],[.,.]]=>0
[[[.,[[[.,.],.],.]],.],[.,.]]=>0
[[[[.,.],[.,[.,.]]],.],[.,.]]=>0
[[[[.,.],[[.,.],.]],.],[.,.]]=>0
[[[[.,[.,.]],[.,.]],.],[.,.]]=>0
[[[[[.,.],.],[.,.]],.],[.,.]]=>0
[[[[.,[.,[.,.]]],.],.],[.,.]]=>0
[[[[.,[[.,.],.]],.],.],[.,.]]=>0
[[[[[.,.],[.,.]],.],.],[.,.]]=>0
[[[[[.,[.,.]],.],.],.],[.,.]]=>0
[[[[[[.,.],.],.],.],.],[.,.]]=>0
[[.,[.,[.,[.,[.,[.,.]]]]]],.]=>3
[[.,[.,[.,[.,[[.,.],.]]]]],.]=>2
[[.,[.,[.,[[.,.],[.,.]]]]],.]=>2
[[.,[.,[.,[[.,[.,.]],.]]]],.]=>1
[[.,[.,[.,[[[.,.],.],.]]]],.]=>1
[[.,[.,[[.,.],[.,[.,.]]]]],.]=>2
[[.,[.,[[.,.],[[.,.],.]]]],.]=>1
[[.,[.,[[.,[.,.]],[.,.]]]],.]=>1
[[.,[.,[[[.,.],.],[.,.]]]],.]=>1
[[.,[.,[[.,[.,[.,.]]],.]]],.]=>0
[[.,[.,[[.,[[.,.],.]],.]]],.]=>0
[[.,[.,[[[.,.],[.,.]],.]]],.]=>0
[[.,[.,[[[.,[.,.]],.],.]]],.]=>0
[[.,[.,[[[[.,.],.],.],.]]],.]=>0
[[.,[[.,.],[.,[.,[.,.]]]]],.]=>2
[[.,[[.,.],[.,[[.,.],.]]]],.]=>1
[[.,[[.,.],[[.,.],[.,.]]]],.]=>1
[[.,[[.,.],[[.,[.,.]],.]]],.]=>0
[[.,[[.,.],[[[.,.],.],.]]],.]=>0
[[.,[[.,[.,.]],[.,[.,.]]]],.]=>1
[[.,[[.,[.,.]],[[.,.],.]]],.]=>0
[[.,[[[.,.],.],[.,[.,.]]]],.]=>1
[[.,[[[.,.],.],[[.,.],.]]],.]=>0
[[.,[[.,[.,[.,.]]],[.,.]]],.]=>0
[[.,[[.,[[.,.],.]],[.,.]]],.]=>0
[[.,[[[.,.],[.,.]],[.,.]]],.]=>0
[[.,[[[.,[.,.]],.],[.,.]]],.]=>0
[[.,[[[[.,.],.],.],[.,.]]],.]=>0
[[.,[[.,[.,[.,[.,.]]]],.]],.]=>1
[[.,[[.,[.,[[.,.],.]]],.]],.]=>0
[[.,[[.,[[.,.],[.,.]]],.]],.]=>0
[[.,[[.,[[.,[.,.]],.]],.]],.]=>0
[[.,[[.,[[[.,.],.],.]],.]],.]=>0
[[.,[[[.,.],[.,[.,.]]],.]],.]=>0
[[.,[[[.,.],[[.,.],.]],.]],.]=>0
[[.,[[[.,[.,.]],[.,.]],.]],.]=>0
[[.,[[[[.,.],.],[.,.]],.]],.]=>0
[[.,[[[.,[.,[.,.]]],.],.]],.]=>0
[[.,[[[.,[[.,.],.]],.],.]],.]=>0
[[.,[[[[.,.],[.,.]],.],.]],.]=>0
[[.,[[[[.,[.,.]],.],.],.]],.]=>0
[[.,[[[[[.,.],.],.],.],.]],.]=>0
[[[.,.],[.,[.,[.,[.,.]]]]],.]=>2
[[[.,.],[.,[.,[[.,.],.]]]],.]=>1
[[[.,.],[.,[[.,.],[.,.]]]],.]=>1
[[[.,.],[.,[[.,[.,.]],.]]],.]=>0
[[[.,.],[.,[[[.,.],.],.]]],.]=>0
[[[.,.],[[.,.],[.,[.,.]]]],.]=>1
[[[.,.],[[.,.],[[.,.],.]]],.]=>0
[[[.,.],[[.,[.,.]],[.,.]]],.]=>0
[[[.,.],[[[.,.],.],[.,.]]],.]=>0
[[[.,.],[[.,[.,[.,.]]],.]],.]=>0
[[[.,.],[[.,[[.,.],.]],.]],.]=>0
[[[.,.],[[[.,.],[.,.]],.]],.]=>0
[[[.,.],[[[.,[.,.]],.],.]],.]=>0
[[[.,.],[[[[.,.],.],.],.]],.]=>0
[[[.,[.,.]],[.,[.,[.,.]]]],.]=>1
[[[.,[.,.]],[.,[[.,.],.]]],.]=>0
[[[.,[.,.]],[[.,.],[.,.]]],.]=>0
[[[.,[.,.]],[[.,[.,.]],.]],.]=>0
[[[.,[.,.]],[[[.,.],.],.]],.]=>0
[[[[.,.],.],[.,[.,[.,.]]]],.]=>1
[[[[.,.],.],[.,[[.,.],.]]],.]=>0
[[[[.,.],.],[[.,.],[.,.]]],.]=>0
[[[[.,.],.],[[.,[.,.]],.]],.]=>0
[[[[.,.],.],[[[.,.],.],.]],.]=>0
[[[.,[.,[.,.]]],[.,[.,.]]],.]=>0
[[[.,[.,[.,.]]],[[.,.],.]],.]=>0
[[[.,[[.,.],.]],[.,[.,.]]],.]=>0
[[[.,[[.,.],.]],[[.,.],.]],.]=>0
[[[[.,.],[.,.]],[.,[.,.]]],.]=>0
[[[[.,.],[.,.]],[[.,.],.]],.]=>0
[[[[.,[.,.]],.],[.,[.,.]]],.]=>0
[[[[.,[.,.]],.],[[.,.],.]],.]=>0
[[[[[.,.],.],.],[.,[.,.]]],.]=>0
[[[[[.,.],.],.],[[.,.],.]],.]=>0
[[[.,[.,[.,[.,.]]]],[.,.]],.]=>1
[[[.,[.,[[.,.],.]]],[.,.]],.]=>0
[[[.,[[.,.],[.,.]]],[.,.]],.]=>0
[[[.,[[.,[.,.]],.]],[.,.]],.]=>0
[[[.,[[[.,.],.],.]],[.,.]],.]=>0
[[[[.,.],[.,[.,.]]],[.,.]],.]=>0
[[[[.,.],[[.,.],.]],[.,.]],.]=>0
[[[[.,[.,.]],[.,.]],[.,.]],.]=>0
[[[[[.,.],.],[.,.]],[.,.]],.]=>0
[[[[.,[.,[.,.]]],.],[.,.]],.]=>0
[[[[.,[[.,.],.]],.],[.,.]],.]=>0
[[[[[.,.],[.,.]],.],[.,.]],.]=>0
[[[[[.,[.,.]],.],.],[.,.]],.]=>0
[[[[[[.,.],.],.],.],[.,.]],.]=>0
[[[.,[.,[.,[.,[.,.]]]]],.],.]=>2
[[[.,[.,[.,[[.,.],.]]]],.],.]=>1
[[[.,[.,[[.,.],[.,.]]]],.],.]=>1
[[[.,[.,[[.,[.,.]],.]]],.],.]=>0
[[[.,[.,[[[.,.],.],.]]],.],.]=>0
[[[.,[[.,.],[.,[.,.]]]],.],.]=>1
[[[.,[[.,.],[[.,.],.]]],.],.]=>0
[[[.,[[.,[.,.]],[.,.]]],.],.]=>0
[[[.,[[[.,.],.],[.,.]]],.],.]=>0
[[[.,[[.,[.,[.,.]]],.]],.],.]=>0
[[[.,[[.,[[.,.],.]],.]],.],.]=>0
[[[.,[[[.,.],[.,.]],.]],.],.]=>0
[[[.,[[[.,[.,.]],.],.]],.],.]=>0
[[[.,[[[[.,.],.],.],.]],.],.]=>0
[[[[.,.],[.,[.,[.,.]]]],.],.]=>1
[[[[.,.],[.,[[.,.],.]]],.],.]=>0
[[[[.,.],[[.,.],[.,.]]],.],.]=>0
[[[[.,.],[[.,[.,.]],.]],.],.]=>0
[[[[.,.],[[[.,.],.],.]],.],.]=>0
[[[[.,[.,.]],[.,[.,.]]],.],.]=>0
[[[[.,[.,.]],[[.,.],.]],.],.]=>0
[[[[[.,.],.],[.,[.,.]]],.],.]=>0
[[[[[.,.],.],[[.,.],.]],.],.]=>0
[[[[.,[.,[.,.]]],[.,.]],.],.]=>0
[[[[.,[[.,.],.]],[.,.]],.],.]=>0
[[[[[.,.],[.,.]],[.,.]],.],.]=>0
[[[[[.,[.,.]],.],[.,.]],.],.]=>0
[[[[[[.,.],.],.],[.,.]],.],.]=>0
[[[[.,[.,[.,[.,.]]]],.],.],.]=>1
[[[[.,[.,[[.,.],.]]],.],.],.]=>0
[[[[.,[[.,.],[.,.]]],.],.],.]=>0
[[[[.,[[.,[.,.]],.]],.],.],.]=>0
[[[[.,[[[.,.],.],.]],.],.],.]=>0
[[[[[.,.],[.,[.,.]]],.],.],.]=>0
[[[[[.,.],[[.,.],.]],.],.],.]=>0
[[[[[.,[.,.]],[.,.]],.],.],.]=>0
[[[[[[.,.],.],[.,.]],.],.],.]=>0
[[[[[.,[.,[.,.]]],.],.],.],.]=>0
[[[[[.,[[.,.],.]],.],.],.],.]=>0
[[[[[[.,.],[.,.]],.],.],.],.]=>0
[[[[[[.,[.,.]],.],.],.],.],.]=>0
[[[[[[[.,.],.],.],.],.],.],.]=>0
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Description
The number of occurrences of the contiguous pattern [.,[.,[.,[.,.]]]] in a binary tree.
oeis:A036765 counts binary trees avoiding this pattern.
oeis:A036765 counts binary trees avoiding this pattern.
References
[1] 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 17:47 by Eric Rowland
Updated
Oct 17, 2015 at 11:05 by Christian Stump
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