A239375 - OEIS

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A239375

Words of length n over the alphabet {0,...,n-1} that avoid the pattern 1221.

1, 1, 4, 27, 250, 2915, 40766, 662494 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,3`
	LINKS	`Table of n, a(n) for n=0..7.`
	CROSSREFS	`Cf. A239295.` `Sequence in context: A000699 A138423 A239372 * A239370 A239369 A246526` `Adjacent sequences: A239372 A239373 A239374 * A239376 A239377 A239378`
	KEYWORD	`nonn,more`
	AUTHOR	`Chad Brewbaker, Mar 17 2014`
	STATUS	`approved`

Last modified April 10 15:15 EDT 2021. Contains 342845 sequences. (Running on oeis4.)