id:A026989 - OEIS Search Results

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a(n) = Sum{T(n,k)*T(n,k+3)}, 0<=k<=n-3, T given by A026681.

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1, 14, 115, 660, 3805, 20520, 109779, 551774, 2921313, 14482320, 71576096, 349292330, 1804636693, 8745745676, 42107640345, 203559063050 (list; graph; listen)

	OFFSET	`3,2`
	CROSSREFS	`Sequence in context: A076429 A027204 A026959 this_sequence A121783 A128569 A138431` `Adjacent sequences: A026986 A026987 A026988 this_sequence A026990 A026991 A026992`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.

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