id:A027226 - OEIS Search Results

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a(n) = Sum{T(n,k)*T(n,k+3), 0<=k<=n-3, T given by A026747.

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1, 11, 75, 496, 2523, 14903, 68478, 389040, 1705001, 9552071, 40792260, 227758442, 957346363, 5353798598, 22267534284, 125033595506, 516148089100 (list; graph; listen)

	OFFSET	`3,2`
	CROSSREFS	`Sequence in context: A121784 A044198 A044579 this_sequence A157232 A092225 A055901` `Adjacent sequences: A027223 A027224 A027225 this_sequence A027227 A027228 A027229`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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