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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
FORMULA
a(n) = A081160(2n+1).
CROSSREFS
Sequence in context: A231896 A128650 A072335 * A032106 A269462 A047097
KEYWORD
nonn,more
AUTHOR
STATUS
approved

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Last modified March 28 12:26 EDT 2024. Contains 371254 sequences. (Running on oeis4.)