A151586 - OEIS

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A151586

Number of permutations of 2 indistinguishable copies of 1..n arranged in a circle with exactly 5 adjacent element pairs in decreasing order.

0, 184, 41450, 2698344, 101727276, 2846840080, 66502921806, 1382518990400 (list; graph; refs; listen; history; internal format)

	OFFSET	`3,2`
	CROSSREFS	`Sequence in context: A094631 A060491 A203843 * A194614 A139265 A157297` `Adjacent sequences: A151583 A151584 A151585 * A151587 A151588 A151589`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net) May 21 2009`

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Last modified February 16 21:51 EST 2012. Contains 205978 sequences.