id:A026636 - OEIS Search Results

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Sum{T(n-k,k)}, 0<=k<=[ n/2 ], T given by A026626.

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1, 1, 2, 4, 6, 11, 17, 30, 47, 78, 125, 205, 330, 536, 866, 1404, 2270, 3675, 5945, 9622, 15567, 25190, 40757, 65949, 106706, 172656, 279362, 452020, 731382, 1183403, 1914785, 3098190, 5012975, 8111166, 13124141, 21235309 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`G.f.: (x^7+x^5-x^4+x^3+1)/[(1-x^4)(1-x-x^2)].`
	CROSSREFS	`Sequence in context: A004698 A014217 A034297 this_sequence A026658 A138688 A131298` `Adjacent sequences: A026633 A026634 A026635 this_sequence A026637 A026638 A026639`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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