id:A096361 - OEIS Search Results

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Total number of triangles in all polyiamonds with n triangles.

+0
2

1, 2, 3, 12, 20, 72, 168, 528, 1440, 4480, 13046, 40008, 120055, 366324, 1109745, 3380752, 10269819, 31253904, 95011267, 288979680, 878550498, 2671223720, 8120041693, 24682865208, 75020015675, 227999634772, 692872971246, 2105464666676 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`S. T. Coffin, The Puzzling World of Polyhedral Dissections, Chap 2, Table 1.`
	CROSSREFS	`a(n) = n*A000577(n).` `Adjacent sequences: A096358 A096359 A096360 this_sequence A096362 A096363 A096364` `Sequence in context: A126292 A083265 A067391 this_sequence A105045 A076000 A096632`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Aug 04 2004`

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Last modified November 9 12:23 EST 2009. Contains 166233 sequences.

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