id:A081158 - OEIS Search Results

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Number of even cycles in range [A014137(2n-1)..A014138(2n-1)] of permutation A057505/A057506, with no fixed points of A057164.

+0
3

0, 0, 0, 8, 60, 402, 2474, 14496, 84282, 492048 (list; graph; listen)

	OFFSET	`0,4`
	CROSSREFS	`a(n) = A081157(2n) = A081151(n) - A001700(n-1) [where A001700(-1) is taken as 0 here].` `Sequence in context: A032365 A074423 A054401 this_sequence A002927 A126640 A093132` `Adjacent sequences: A081155 A081156 A081157 this_sequence A081159 A081160 A081161`
	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 August 19 23:53 EDT 2008. Contains 142930 sequences.