id:A081161 - OEIS Search Results

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Number of even cycles in range [A014137(2n)..A014138(2n)] of permutation A057505/A057506, with two fixed-points of A057164.

+0
3

0, 1, 4, 16, 60, 225, 848, 3188, 12095 (list; graph; listen)

	OFFSET	`0,3`
	CROSSREFS	`a(n) = A081160(2n+1).` `Sequence in context: A120926 A128650 A072335 this_sequence A032106 A047097 A051043` `Adjacent sequences: A081158 A081159 A081160 this_sequence A081162 A081163 A081164`
	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 November 27 22:38 EST 2009. Contains 167602 sequences.