id:A165535 - OEIS Search Results

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Number of permutations of length n which avoid the patterns 4231 and 3124.

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1, 2, 6, 22, 88, 363, 1508, 6255, 25842, 106327, 435965, 1782733 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`There are 22 permutations of length 4 which avoid these two patterns, so a(4)=22.`
	CROSSREFS	`Sequence in context: A101046 A150263 A165534 this_sequence A165536 A032351 A165537` `Adjacent sequences: A165532 A165533 A165534 this_sequence A165536 A165537 A165538`
	KEYWORD	`nonn`
	AUTHOR	`Vince Vatter (vatter(AT)gmail.com), Sep 21 2009`

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.