id:A152145 - OEIS Search Results

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a(n) = least k such that 3*k*2^n-1 or 3*k*2^n+1 (or both) is prime.

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1, 1, 1, 1, 1, 1, 1, 1, 1, 4, 2, 1, 1, 3, 3, 3, 4, 2, 1, 9, 6, 3, 9, 15, 13, 11, 9, 5, 4, 2, 1, 5, 4, 2, 1, 2, 1, 2, 1, 4, 2, 1, 2, 1, 5, 18, 9, 9, 5, 18, 9, 7, 8, 4, 2, 1, 9, 17, 18, 9, 15 (list; graph; listen)

	OFFSET	`0,10`
	LINKS	`Pierre CAMI, Table of n, a(n) for n = 0..1230`
	CROSSREFS	`A152141` `Sequence in context: A036466 A097526 A051149 this_sequence A051758 A024553 A051568` `Adjacent sequences: A152142 A152143 A152144 this_sequence A152146 A152147 A152148`
	KEYWORD	`nonn`
	AUTHOR	`Pierre CAMI (pierre-cami(AT)orange.fr), Nov 26 2008, Nov 27 2008`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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