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A112634 Mersenne prime indices that are not Gaussian primes. 4
2, 5, 13, 17, 61, 89, 521, 2281, 3217, 4253, 9689, 9941, 11213, 19937, 21701, 23209, 44497, 132049, 859433, 1398269, 2976221, 3021377, 6972593, 13466917, 30402457 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

It is known that 30402457, 32582657, 42643801 and 43112609 are in the sequence, but there may be gaps in this list because the set of Mersenne primes is complete (so far) only up to 2^13466917-1. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 31 2009]

LINKS

C. K. Caldwell, The largest known primes. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 31 2009]

FORMULA

A000043 INTERSECT A002313. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 06 2008

A000043 SET-MINUS A112633.

CROSSREFS

Cf. A112633, A000043, A002313.

Sequence in context: A156009 A164620 A156013 * A045364 A045365 A104491

Adjacent sequences:  A112631 A112632 A112633 * A112635 A112636 A112637

KEYWORD

nonn

AUTHOR

Jorge Coveiro (jorgecoveiro(AT)yahoo.com), Dec 27 2005

EXTENSIONS

Edited by R. J. Mathar, Oct 06 2008

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.