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A057441 n*M127 - 1 is prime, where M127 = 2^127 - 1. 1
80, 282, 306, 830, 954, 1032, 1104, 1112, 1286, 1362, 1386, 1446, 1682, 1832, 1914, 2090, 2190, 2210, 2340, 2436, 2522, 2564, 2580, 2634, 2804, 2880, 2886, 2954, 3096, 3252, 3360, 3380, 3582, 3666, 3752, 3944, 4064, 4122, 4154, 4244, 4310, 4326, 4370 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..43.

MATHEMATICA

Select[ Range[ 1, 10000 ], PrimeQ[ #(2^127 - 1) - 1 ] & ]

CROSSREFS

Cf. A057440.

Sequence in context: A157912 A234883 A194646 * A204483 A204475 A157953

Adjacent sequences:  A057438 A057439 A057440 * A057442 A057443 A057444

KEYWORD

nonn

AUTHOR

Robert G. Wilson v, Sep 08 2000

STATUS

approved

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Last modified November 28 16:34 EST 2021. Contains 349413 sequences. (Running on oeis4.)