A151515 - OEIS

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A151515

Number of 1-sided strip polyhexes with n cells.

1, 1, 2, 6, 15, 44, 121, 353, 1005, 2919, 8398, 24310, 70064, 202225, 582365, 1676889, 4821924, 13857720, 39787804 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,3`
	LINKS	`Table of n, a(n) for n=1..19.` `Ed Pegg, Jr., Illustrations of polyforms` `Eric Weisstein's World of Mathematics, Polyhex`
	CROSSREFS	`Sequence in context: A303833 A148438 A148439 * A264746 A052870 A293743` `Adjacent sequences: A151512 A151513 A151514 * A151516 A151517 A151518`
	KEYWORD	`nonn,hard,more`
	AUTHOR	`Ed Pegg Jr, May 13 2009`
	EXTENSIONS	`a(13)-a(19) from Joseph Myers, Nov 26 2010`
	STATUS	`approved`

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Last modified March 2 12:26 EST 2021. Contains 341750 sequences. (Running on oeis4.)