id:A027216 - OEIS Search Results

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a(n) = Sum{T(n,k)*T(n,k+1), 0<=k<=n-1, T given by A026736.

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1, 4, 15, 63, 237, 1034, 3945, 17577, 67640, 304902, 1179415, 5352038, 20771331, 94628132, 368083879, 1680820301, 6548692260, 29946087674, 116816782997, 534628747310 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Adjacent sequences: A027213 A027214 A027215 this_sequence A027217 A027218 A027219` `Sequence in context: A007161 A007167 A036728 this_sequence A124541 A134597 A007526`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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