id:A032124 - OEIS Search Results

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"BIK" (reversible, indistinct, unlabeled) transform of 2,2,2,2...

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2, 5, 12, 33, 90, 261, 756, 2241, 6642, 19845, 59292, 177633, 532170, 1595781, 4785156, 14353281, 43053282, 129153285, 387440172, 1162300833, 3486843450, 10460471301, 31381236756, 94143533121, 282430067922 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`C. G. Bower, Transforms (2)`
	FORMULA	`(1/6){(5-(-1)^n)3^[n/2] + 2*3^n}. - R. Stephan, May 11 2004`
	CROSSREFS	`Sequence in context: A010843 A084075 A000560 this_sequence A000669 A004114 A076864` `Adjacent sequences: A032121 A032122 A032123 this_sequence A032125 A032126 A032127`
	KEYWORD	`nonn`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net)`

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Last modified November 23 10:40 EST 2009. Contains 167421 sequences.

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