id:A079824 - OEIS Search Results

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Sum of numbers in n-th upward diagonal of triangle in A079823.

+0
3

1, 2, 7, 12, 25, 37, 62, 84, 125, 160, 221, 272, 357, 427, 540, 632, 777, 894, 1075, 1220, 1441, 1717, 1882, 2092, 2405, 2652, 3017, 3304, 3725, 4055, 4536, 4912, 5457, 5882, 6495, 6972, 7657, 8189, 8950, 9540, 10381, 11032, 11957, 12672, 13685, 14467 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(2n) = (n/6)(7n^2 + 3n + 2); a(2n-1) = (n/6)(7n^2 - 6n + 5) . - DELEHAM Philippe (kolotoko(AT)wanadoo.fr), Feb 16 2004`
	CROSSREFS	`Cf. A079823.` `Sequence in context: A119713 A135541 A122264 this_sequence A059329 A102371 A007230` `Adjacent sequences: A079821 A079822 A079823 this_sequence A079825 A079826 A079827`
	KEYWORD	`base,nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Feb 11 2003`
	EXTENSIONS	`More terms from Jason D. W. Taff (jtaff(AT)jburroughs.org), Oct 31 2003` `More terms from DELEHAM Philippe (kolotoko(AT)wanadoo.fr), Feb 16 2004`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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