id:A094169 - OEIS Search Results

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Number of rooted 2-dimensional polyominoes with n octagonal cells, with no symmetries removed.

+0
2

1, 8, 60, 440, 3230, 23688, 173796, 1275240, 9359748, 68708320, 504466468, 3704376384, 27205146592 (list; graph; listen)

	OFFSET	`1,2`
	REFERENCES	`Dan Hoey, Bill Gosper and Rich Schroeppel, Discussions in Math-Fun Mailing list, circa Jul 13 1999.`
	LINKS	`R. C. Schroeppel, A few mathematical experiments`
	CROSSREFS	`A row of A094166.` `Sequence in context: A002927 A126640 A093132 this_sequence A129325 A001267 A099156` `Adjacent sequences: A094166 A094167 A094168 this_sequence A094170 A094171 A094172`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), May 06 2004`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.