id:A027180 - OEIS Search Results

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a(n) = Sum{T(i,j)}, 0<=j<=i, 0<=i<=n, T given by A027170.

+0
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1, 7, 27, 79, 199, 459, 1003, 2119, 4383, 8947, 18115, 36495, 73303, 146971, 294363, 589207, 1178959, 2358531, 4717747, 9436255, 18873351, 37747627, 75496267, 150993639, 301988479, 603978259, 1207957923, 2415917359 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`18*2^n - 2n^2 - 10n - 17.`
	CROSSREFS	`Sequence in context: A162493 A005585 A161410 this_sequence A036597 A038092 A059823` `Adjacent sequences: A027177 A027178 A027179 this_sequence A027181 A027182 A027183`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified March 9 00:15 EST 2010. Contains 173097 sequences.

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