id:A048503 - OEIS Search Results

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G.f.: (1-4x+6x^2-2x^3)/[(1-x)^3*(1-2x)^2].

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1, 3, 8, 22, 61, 165, 430, 1080, 2627, 6223, 14428, 32874, 73849, 163977, 360602, 786604, 1704127, 3670227, 7864552, 16777470, 35651861, 75497773, 159383878, 335544672, 704643451, 1476395415, 3087008180, 6442451410 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`a(n)=T(0,n)+T(1,n-1)+...+T(n,0), array T given by A048494.`
	LINKS	`Index entries for sequences related to linear recurrences with constant coefficients`
	FORMULA	`a(n)=(14+7n+n^2+(n-3)*2^(n+2))/2 - T. D. Noe (noe(AT)sspectra.com), Dec 11 2006`
	CROSSREFS	`Sequence in context: A028859 A155020 A014397 this_sequence A048579 A121449 A025566` `Adjacent sequences: A048500 A048501 A048502 this_sequence A048504 A048505 A048506`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`
	EXTENSIONS	`Better definition from Ralf Stephan, Feb 05 2004` `Corrected by T. D. Noe (noe(AT)sspectra.com), Dec 11 2006`

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Last modified December 1 13:27 EST 2009. Contains 167806 sequences.

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