id:A026397 - OEIS Search Results

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Sum{T(n-k,k)}, 0<=k<=[ n/2 ], where T is the array in A026386.

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1, 2, 3, 6, 10, 17, 31, 53, 92, 163, 282, 492, 863, 1501, 2621, 4582, 7987, 13946, 24354, 42489, 74179, 129497, 226000, 394523, 688670, 1202020, 2098239, 3662553, 6392969, 11159290, 19478867, 34000750, 59349706, 103596641 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`Pairwise sums of A026385. - Ralf Stephan (ralf(AT)ark.in-berlin.de), Jul 22 2003` `G.f.: [(1+x)(1+x+x^2)]/[1-x^2-3x^3-x^4]. - R. Stephan, Apr 30 2004`
	CROSSREFS	`Sequence in context: A001610 A135431 A123908 this_sequence A026779 A081028 A065441` `Adjacent sequences: A026394 A026395 A026396 this_sequence A026398 A026399 A026400`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

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