id:A131738 - OEIS Search Results

Search: id:A131738

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a(0) = 0. a(n) = (n+1)*(-1)^n, n>0 .

+0
3

0, -2, 3, -4, 5, -6, 7, -8, 9, -10, 11, -12, 13, -14, 15, -16, 17, -18, 19, -20, 21, -22, 23, -24, 25, -26, 27, -28, 29, -30, 31, -32, 33, -34, 35, -36, 37, -38, 39, -40, 41, -42, 43, -44, 45, -46, 47, -48, 49, -50, 51, -52, 53, -54, 55, -56, 57, -58, 59, -60, 61, -62, 63, -64, 65, -66, 67, -68, 69, -70, 71, -72, 73, -74, 75 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Also the main diagonal of A138057.`
	CROSSREFS	`Cf. A105811.` `Sequence in context: A099570 A020725 A119972 this_sequence A000027 A001477 A087156` `Adjacent sequences: A131735 A131736 A131737 this_sequence A131739 A131740 A131741`
	KEYWORD	`sign`
	AUTHOR	`Paul Curtz (bpcrtz(AT)free.fr), Sep 19 2007`
	EXTENSIONS	`Edited by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 07 2008`

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Last modified December 17 13:29 EST 2009. Contains 170826 sequences.

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