id:A027210 - OEIS Search Results

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a(n) = Sum{T(n,k)*T(n,k+3), 0<=k<=n-3, T given by A026725.

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1, 9, 57, 298, 1545, 7126, 34603, 151633, 714481, 3049328, 14131926, 59385159, 272409611, 1133433579, 5163641033, 21341122875, 96751092786, 397978832144 (list; graph; listen)

	OFFSET	`3,2`
	CROSSREFS	`Sequence in context: A131468 A086888 A064838 this_sequence A045720 A014916 A045635` `Adjacent sequences: A027207 A027208 A027209 this_sequence A027211 A027212 A027213`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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