id:A119883 - OEIS Search Results

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A119883

E.g.f. (1+2x+x^2/2)*sech(x).

+0
1

1, 2, 0, -6, -1, 50, 14, -854, -323, 24930, 11804, -1111462, -631621, 70271890, 46590634, -5980829430, -4531805575, 659311412930, 562021682744, -91385427666758, -86555950096265, 15555589905976050, 16206870089730374, -3190048222084343446, -3625755168948973771 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Transform of binomial(2,n) under the matrix A119879.`
	FORMULA	`a(n)=sum{k=0..n, A119879(n,k)*C(2,k)}`
	CROSSREFS	`Sequence in context: A021489 A092158 A051831 this_sequence A020853 A095832 A143381` `Adjacent sequences: A119880 A119881 A119882 this_sequence A119884 A119885 A119886`
	KEYWORD	`easy,sign`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), May 26 2006`

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Last modified November 24 19:42 EST 2009. Contains 167435 sequences.

AT&T Labs Research