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A081161 Number of even cycles in range [A014137(2n)..A014138(2n)] of permutation A057505/A057506, with two fixed-points of A057164. 2
0, 1, 4, 16, 60, 225, 848, 3188, 12095 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

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

CROSSREFS

a(n) = A081160(2n+1).

Sequence in context: A231896 A128650 A072335 * A032106 A269462 A047097

Adjacent sequences:  A081158 A081159 A081160 * A081162 A081163 A081164

KEYWORD

nonn

AUTHOR

Wouter Meeussen & Antti Karttunen Mar 10 2003

STATUS

approved

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Last modified January 18 14:04 EST 2020. Contains 331011 sequences. (Running on oeis4.)