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A081159 Number of even cycles in range [A014137(2n)..A014138(2n)] of permutation A057505/A057506, with no fixed points of either A057163 or A057164. 2
0, 0, 2, 20, 148, 986, 5918, 34708, 202664 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

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

CROSSREFS

a(n) = A081157(2n+1).

Sequence in context: A198052 A203216 A198647 * A105489 A093302 A248337

Adjacent sequences:  A081156 A081157 A081158 * A081160 A081161 A081162

KEYWORD

nonn

AUTHOR

Wouter Meeussen & Antti Karttunen Mar 10 2003

STATUS

approved

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Last modified February 19 18:30 EST 2019. Contains 320327 sequences. (Running on oeis4.)