id:A027984 - OEIS Search Results

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a(n) = Sum{T(n,k)*T(n,n+k)}, 0<=k<=n, T given by A027960.

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1, 6, 20, 58, 161, 436, 1165, 3088, 8146, 21426, 56255, 147538, 386681, 1013026, 2653240, 6948058, 18193141, 47634936, 124717445, 326526748, 854877926, 2238131506, 5859556195, 15340601158, 40162350961, 105146619486, 275277778940 (list; graph; listen)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A048611 A127982 A109164 this_sequence A018808 A027107 A096487` `Adjacent sequences: A027981 A027982 A027983 this_sequence A027985 A027986 A027987`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

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