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A081162
Number of even cycles in range [A014137(n-1)..A014138(n-1)] of permutation A057505/A057506, with two fixed-points of A057163.
4
0, 0, 0, 0, 0, 0, 0, 1, 0, 4, 0, 15, 0, 56, 0, 185, 0, 655, 0
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OFFSET
0,10
COMMENTS
Because A057163 can fix only binary trees of odd size, the even-indexed terms are all 0.
LINKS
Table of n, a(n) for n=0..18.
CROSSREFS
Bisection: A081163. Cf. A081150, A081157, A081160.
Cf. A014137, A014138, A057505, A057506, A057163.
Sequence in context: A006710 A395995 A141150 * A095367 A368694 A060052
Adjacent sequences: A081159 A081160 A081161 * A081163 A081164 A081165
KEYWORD
nonn,more
AUTHOR
Wouter Meeussen and Antti Karttunen, Mar 10 2003
STATUS
approved

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Last modified May 21 16:16 EDT 2026. Contains 395798 sequences.
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