id:A027107 - OEIS Search Results

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a(n) = Sum{(k+1)*T(n,2n-k)}, 0<=k<=2n, T given by A027082.

+0
1

1, 6, 20, 62, 188, 566, 1700, 5102, 15308, 45926, 137780, 413342, 1240028, 3720086, 11160260, 33480782, 100442348, 301327046, 903981140, 2711943422, 8135830268, 24407490806, 73222472420, 219667417262, 659002251788 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`For n>0, a(n) = 7*3^(n-1) - 1.`
	CROSSREFS	`Adjacent sequences: A027104 A027105 A027106 this_sequence A027108 A027109 A027110` `Sequence in context: A109164 A027984 A018808 this_sequence A096487 A050930 A074353`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified October 11 13:47 EDT 2008. Contains 144830 sequences.

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