id:A118353 - OEIS Search Results

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Semi-diagonal (two rows below central terms) of pendular triangle A118350 and equal to the self-convolution cube of the central terms (A118351).

+0
5

1, 3, 21, 163, 1353, 11760, 105681, 973953, 9154821, 87428388, 845894700, 8273978100, 81682757317, 812829371205, 8144563709391, 82104333340467, 832125695906313, 8473862660311392, 86661931504395228, 889705959333345756 (list; graph; listen)

	OFFSET	`0,2`
	PROGRAM	`(PARI) {a(n)=polcoeff((serreverse(x(1-3x+sqrt((1-3x)(1-7x)+xO(x^n)))/2/(1-3*x))/x\ )^3, n)}`
	CROSSREFS	`Cf. A118350, A118351, A118352, A118354.` `Sequence in context: A136781 A166696 A058194 this_sequence A046637 A132805 A054879` `Adjacent sequences: A118350 A118351 A118352 this_sequence A118354 A118355 A118356`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Apr 26 2006`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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