A151633 - OEIS

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A151633

Number of permutations of 3 indistinguishable copies of 1..n with exactly 3 adjacent element pairs in decreasing order.

0, 1, 760, 49682, 1722320, 45699447, 1063783164, 23119658500, 484099087156 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,3`
	CROSSREFS	`Sequence in context: A157983 A014747 A165629 * A022051 A107515 A151588` `Adjacent sequences: A151630 A151631 A151632 * A151634 A151635 A151636`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net) May 29 2009`

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Last modified February 17 21:13 EST 2012. Contains 206085 sequences.