id:A026974 - OEIS Search Results

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a(n) = Sum{T(n,k)*T(n,k+3)}, 0<=k<=n-3, T given by A026648.

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1, 12, 77, 450, 2154, 11592, 51060, 261720, 1106790, 5562216, 23051943, 114491286, 468950860, 2313509520, 9409147640, 46221336720, 187136146566, 916762621320 (list; graph; listen)

	OFFSET	`3,2`
	CROSSREFS	`Sequence in context: A071767 A054334 A026964 this_sequence A109711 A136540 A139612` `Adjacent sequences: A026971 A026972 A026973 this_sequence A026975 A026976 A026977`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified November 25 14:49 EST 2009. Contains 167514 sequences.

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