id:A026982 - OEIS Search Results

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a(n) = Sum{T(n,k)*T(n,k+1)}, 0<=k<=n-1, T given by A026670.

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1, 6, 24, 120, 460, 2214, 8475, 40164, 154235, 724742, 2792579, 13050280, 50432693, 234766510, 909442512, 4221139640, 16384219216, 75873259406, 294977735364 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A109583 A100934 A127917 this_sequence A051197 A050212 A047865` `Adjacent sequences: A026979 A026980 A026981 this_sequence A026983 A026984 A026985`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified August 29 14:46 EDT 2008. Contains 143251 sequences.

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