id:A084361 - OEIS Search Results

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a(1) = 1; a(n+1) is the least prime of the form (2^k)*a(n)+-1, for some positive k.

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1, 3, 5, 11, 23, 47, 751, 6007, 24029, 192233, 768931, 98423167, 206408341520383, 54108708279519281153, 907793486286483356068610047, 58098783122334934788391043009 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`a(7) = 751 because a(6)=47, and in 247-1, 247+1, 447-1, 447+1, ... 16*47-1, ...: 751 is the first prime.`
	CROSSREFS	`Cf. A083201.` `Adjacent sequences: A084358 A084359 A084360 this_sequence A084362 A084363 A084364` `Sequence in context: A032803 A030494 A027763 this_sequence A077229 A018113 A113281`
	KEYWORD	`nonn`
	AUTHOR	`Don Reble (djr(AT)nk.ca), Jun 21 2003`

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Last modified October 13 02:37 EDT 2008. Contains 145008 sequences.

AT&T Labs Research