id:A109774 - OEIS Search Results

Search: id:A109774

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(3^(n-1) - 1) * (3^n - 1)/2.

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0, 8, 104, 1040, 9680, 88088, 795704, 7170080, 64556960, 581091368, 5230058504, 47071235120, 423643241840, 3812795553848, 34315179116504, 308836669444160, 2779530197184320, 25015772291219528, 225141952170657704, 2026277574184965200 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A090237 A138430 A164760 this_sequence A001657 A106260 A112121` `Adjacent sequences: A109771 A109772 A109773 this_sequence A109775 A109776 A109777`
	KEYWORD	`nonn`
	AUTHOR	`R. K. Guy, Aug 14 2005`

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.

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