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A081154 Number of odd cycles in range [A014137(2n)..A014138(2n)] of permutation A057505/A057506, with no fixed points of either A057163 or A057164. 1
0, 0, 2, 6, 18, 50, 142, 388, 1114 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..8.

CROSSREFS

a(n) = A081153(2n+1).

Sequence in context: A271897 A304962 A180282 * A002900 A309087 A199770

Adjacent sequences:  A081151 A081152 A081153 * A081155 A081156 A081157

KEYWORD

nonn

AUTHOR

Wouter Meeussen & Antti Karttunen Mar 10 2003

STATUS

approved

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Last modified April 11 06:11 EDT 2021. Contains 342886 sequences. (Running on oeis4.)