id:A108083 - OEIS Search Results

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Triangle, read by rows, where T(0,0) = 1, T(n,k) = (-1)^n*(2n+1)*T(n-1,k) - T(n-1,k-1).

+0
1

1, -3, -1, -15, -2, 1, 105, 29, -5, -1, 945, 156, -74, -4, 1, -10395, -2661, 658, 118, -7, -1, -135135, -24198, 11215, 876, -209, -6, 1, 2027025, 498105, -144027, -24355, 2259, 299, -9, -1, 34459425, 6440760, -2946564, -270008, 62758, 2824, -452, -8, 1, -654729075, -156833865, 49543956, 8076716 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Row sums are (-1)^round(n/2) * 2^(2n) floor(n/2)! * round(n/2 + 1/2)!.`
	CROSSREFS	`Adjacent sequences: A108080 A108081 A108082 this_sequence A108084 A108085 A108086` `Sequence in context: A055301 A080924 A128042 this_sequence A134145 A134146 A085569`
	KEYWORD	`sign`
	AUTHOR	`Gerald McGarvey (gerald.mcgarvey(AT)comcast.net), Jun 04 2005`

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Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.

AT&T Labs Research