id:A032127 - OEIS Search Results

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"BIK" (reversible, indistinct, unlabeled) transform of 1,3,5,7...

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1, 4, 9, 25, 63, 183, 513, 1521, 4455, 13311, 39609, 118665, 355023, 1064583, 3190833, 9571041, 28704375, 86108751, 258300009, 774886905, 2324581983, 6973706583, 20920883553, 62762532561, 188286889095, 564860312991 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`C. G. Bower, Transforms (2)`
	FORMULA	`For n>2, a(n) = (1/9){(8-(-1)^n)3^[n/2] + 2*3^n}. - R. Stephan, May 11 2004`
	CROSSREFS	`Adjacent sequences: A032124 A032125 A032126 this_sequence A032128 A032129 A032130` `Sequence in context: A068373 A068888 A030481 this_sequence A007598 A121648 A133022`
	KEYWORD	`nonn`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net)`

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Last modified May 16 01:24 EDT 2008. Contains 139630 sequences.

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