id:A054127 - OEIS Search Results

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a(1) = 2; a(n) = 9*2^(n-2) - n - 2, n>1.

+0
2

2, 5, 13, 30, 65, 136, 279, 566, 1141, 2292, 4595, 9202, 18417, 36848, 73711, 147438, 294893, 589804, 1179627, 2359274, 4718569, 9437160, 18874343, 37748710, 75497445, 150994916, 301989859, 603979746, 1207959521 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`T(n,1), array T as in A054126.`
	MATHEMATICA	`s=5; lst={2, s}; Do[s+=s+n++; AppendTo[lst, s], {n, 3, 5!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Oct 25 2008]`
	CROSSREFS	`Sequence in context: A122025 A057873 A116699 this_sequence A018012 A065377 A077278` `Adjacent sequences: A054124 A054125 A054126 this_sequence A054128 A054129 A054130`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified December 1 13:27 EST 2009. Contains 167806 sequences.

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