A131467 - OEIS

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A131467

Number of planar polyhexes (A000228) with at most n cells.

1, 2, 5, 12, 34, 116, 449, 1897, 8469, 38959, 182511, 865612, 4140438, 19937335, 96519210, 469387311, 2291623939, 11226534301, 55165698564, 271816734576, 1342610043518 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	CROSSREFS	`Partial sums of A000228 = number of hexagonal polyominoes (or planar polyhexes) with n cells.` `Sequence in context: A151408 A121956 A176638 * A000103 A101292 A131267` `Adjacent sequences: A131464 A131465 A131466 * A131468 A131469 A131470`
	KEYWORD	`nonn`
	AUTHOR	`Tanya Khovanova (tanyakh(AT)yahoo.com), Jul 26 2007`

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Last modified February 15 21:56 EST 2012. Contains 205860 sequences.