id:A125200 - OEIS Search Results

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n*(2*n^2 - n - 2).

+0
3

2, 17, 57, 134, 260, 447, 707, 1052, 1494, 2045, 2717, 3522, 4472, 5579, 6855, 8312, 9962, 11817, 13889, 16190, 18732, 21527, 24587, 27924, 31550, 35477, 39717, 44282, 49184, 54435, 60047, 66032, 72402, 79169, 86345, 93942, 101972, 110447, 119379 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`a(n) = Sum(4nk - n - k: 1<=k<=n), sums of rows of the triangle in A125199.` `A003415(A003415(a(n))) = 2*A016969(n-1).`
	CROSSREFS	`Sequence in context: A105691 A125609 A100518 this_sequence A071402 A002430 A160469` `Adjacent sequences: A125197 A125198 A125199 this_sequence A125201 A125202 A125203`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 24 2006`

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Last modified December 9 18:50 EST 2009. Contains 170568 sequences.

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