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A081160 Number of even cycles in range [A014137(n-1)..A014138(n-1)] of permutation A057505/A057506, with two fixed-points of A057164. +0
5
0, 0, 1, 1, 3, 4, 10, 16, 35, 60, 126, 225, 462, 848, 1716, 3188, 6435, 12095, 24310 (list; graph; listen)
OFFSET

0,5

CROSSREFS

Bisections: A001700 (shifted right and prepended with zero) and A081161. Cf. A081150, A081157, A081162.

Adjacent sequences: A081157 A081158 A081159 this_sequence A081161 A081162 A081163

Sequence in context: A007007 A037952 A093512 this_sequence A051437 A034774 A034775

KEYWORD

nonn

AUTHOR

Wouter Meeussen (wouter.meeussen(AT)pandora.be) & Antti Karttunen (Firstname.Surname(AT)iki.fi) Mar 10 2003

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Last modified October 13 02:37 EDT 2008. Contains 145008 sequences.


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