id:A026647 - OEIS Search Results

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Sum{T(n-k,k)}, 0<=k<=[ n/2 ], T given by A026637.

+0
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1, 1, 2, 3, 6, 10, 17, 27, 45, 73, 119, 192, 312, 505, 818, 1323, 2142, 3466, 5609, 9075, 14685, 23761, 38447, 62208, 100656, 162865, 263522, 426387, 689910, 1116298, 1806209, 2922507, 4728717, 7651225, 12379943, 20031168 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`G.f.: (x^6+x^5+1)/[(1-x^4)(1-x-x^2)].`
	CROSSREFS	`Sequence in context: A001636 A036588 A099517 this_sequence A026669 A023614 A001610` `Adjacent sequences: A026644 A026645 A026646 this_sequence A026648 A026649 A026650`
	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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