id:A094164 - OEIS Search Results

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

+0
2

1, 3, 9, 28, 90, 282, 875, 2700, 8271, 25265, 77088, 235014, 716261, 2182257, 6646200, 20234080, 61581327, 187366482, 569947883, 1733389620, 5270937735, 16025807017, 48719131461, 148092422604, 450116618125, 1367983011213, 4157227183617 (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: A049220 A094790 A007822 this_sequence A094803 A094826 A033190` `Adjacent sequences: A094161 A094162 A094163 this_sequence A094165 A094166 A094167`
	KEYWORD	`nonn`
	AUTHOR	`njas, May 07 2004`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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