id:A026385 - OEIS Search Results

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Sum{T(n-k,k)}, 0<=k<=[ n/2 ], where T is the array in A026374.

+0
2

1, 1, 2, 4, 6, 11, 20, 33, 59, 104, 178, 314, 549, 952, 1669, 2913, 5074, 8872, 15482, 27007, 47172, 82325, 143675, 250848, 437822, 764198, 1334041, 2328512, 4064457, 7094833, 12384034, 21616716, 37732990, 65863651 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`G.f.: [1+x+x^2]/[1-x^2-3x^3-x^4]. - R. Stephan, Apr 30 2004`
	CROSSREFS	`Sequence in context: A113913 A002097 A026757 this_sequence A068330 A017993 A049870` `Adjacent sequences: A026382 A026383 A026384 this_sequence A026386 A026387 A026388`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

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