id:A027311 - OEIS Search Results

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a(n) = Sum{(T(n,k)*T(n,k+3)}, 0<=k<=2n-3, T given by A026323.

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4, 43, 396, 3465, 29730, 253008, 2145968, 18184052, 154119660, 1307389666, 11104039000, 94441581936, 804428517984, 6862216318250, 58625961078432, 501592568400544, 4297633705136632, 36872583343109643, 316774930400206020 (list; graph; listen)

	OFFSET	`2,1`
	CROSSREFS	`Sequence in context: A134356 A111829 A130545 this_sequence A074702 A015084 A102388` `Adjacent sequences: A027308 A027309 A027310 this_sequence A027312 A027313 A027314`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`
	EXTENSIONS	`More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Mar 23 2003`

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Last modified September 5 17:15 EDT 2008. Contains 143476 sequences.

AT&T Labs Research