A131513 - OEIS

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A131513

A123689 based sequence as SO(A123689(n)) dimensions.

0, 1, 6, 45, 120, 325, 496, 1035, 1770, 2701, 3828, 5778, 7626, 10585, 14706, 18721, 23220, 30628, 37950, 47278 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,3`
	COMMENTS	`Related to the D_n Cartan like even groups that are like exceptional groups`
	FORMULA	`a(n) = A123689(n)*(A123689(n)-1)/2`
	MATHEMATICA	`(A123689) a = {0, 2, 4, 10, 16, 26, 32, 46, 60, 74, 88, 108, 124, 146, 172, 194, 216, 248, 276, 308} Table[a[[n]]*(a[[n]] - 1)/2, {n, 1, Length[a]}]`
	CROSSREFS	`Cf. A123689.` `Sequence in context: A119202 A063947 A006086 * A204558 A123141 A122096` `Adjacent sequences: A131510 A131511 A131512 * A131514 A131515 A131516`
	KEYWORD	`nonn,uned`
	AUTHOR	`Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Aug 14 2007`

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Last modified February 14 14:07 EST 2012. Contains 205623 sequences.