id:A083474 - OEIS Search Results

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a(n)=T(n)^2-n!.

+0
1

0, 7, 30, 76, 105, -279, -4256, -39024, -360855, -3625775, -39912444, -478995516, -62270125, 19, -87178280175, -1307674353600, -20922789869504, -355687428072591, -640237370569875, 9, -121645100408795900, -2432902008176595900, -51090942171709386639 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`a(3)=T(3)^2-3!=6^2-6=36-6=30`
	PROGRAM	`(PARI) t(n)=n*(n+1)/2 for(i=1, 50, print1(", "t(i)^2-i!))`
	CROSSREFS	`Adjacent sequences: A083471 A083472 A083473 this_sequence A083475 A083476 A083477` `Sequence in context: A116283 A139274 A086640 this_sequence A030440 A045889 A038739`
	KEYWORD	`sign`
	AUTHOR	`Jon Perry (perry(AT)globalnet.co.uk), Jun 08 2003`

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Last modified October 15 09:18 EDT 2008. Contains 145015 sequences.

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