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A130326 Least prime p such that 3*p*2^n+1 is prime. +0
3
2, 2, 3, 3, 2, 2, 3, 2, 19, 5, 5, 2, 5, 11, 3, 47, 7, 2, 11, 19, 47, 11, 11, 59, 97, 11, 23, 5, 11, 2, 31, 13, 37, 3, 53, 2, 71, 5, 5, 97, 2, 7, 3, 3, 5, 167, 41, 37, 5, 163, 23 (list; graph; listen)
OFFSET

0,1

LINKS

Pierre CAMI, Table of n, a(n) for n = 0..500

EXAMPLE

3*2*2^0+1=7 prime so for n=0 p=2

3*2*2^1+1=13 prime so for n=1 p=2

CROSSREFS

Cf. A130325, A130327.

Adjacent sequences: A130323 A130324 A130325 this_sequence A130327 A130328 A130329

Sequence in context: A087175 A071820 A055092 this_sequence A059906 A112046 A076902

KEYWORD

nonn

AUTHOR

Pierre CAMI (pierrecami(AT)tele2.fr), May 24 2007

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Last modified January 8 02:43 EST 2009. Contains 152824 sequences.


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