A151524 - OEIS

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A151524

Number of 2-sided strip polyrhombs with n cells.

1, 1, 3, 5, 12, 24, 58, 126, 300, 686, 1630, 3792, 8983, 21051, 49776, 116858, 275789, 647573, 1525847, 3580673, 8424978, 19755938, 46426810 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,3`
	LINKS	`Ed Pegg, Jr., Illustrations of polyforms` `Eric Weisstein's World of Mathematics, Polyrhomb`
	CROSSREFS	`Sequence in context: A090345 A185087 A186334 * A030270 A129757 A135019` `Adjacent sequences: A151521 A151522 A151523 * A151525 A151526 A151527`
	KEYWORD	`nonn`
	AUTHOR	`Ed Pegg, Jr., (ed(AT)mathpuzzle.com), May 13 2009`
	EXTENSIONS	`a(15)-a(23) from Joseph Myers (jsm(AT)polyomino.org.uk), Nov 22 2010`

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Last modified February 16 08:13 EST 2012. Contains 205893 sequences.