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A142854
Primes congruent to 56 mod 61.
1
239, 727, 971, 1093, 1459, 2069, 2557, 2801, 3167, 3533, 4021, 5119, 5851, 6217, 6827, 6949, 7193, 7559, 7681, 8291, 8779, 9511, 10243, 10487, 10853, 12073, 13049, 13171, 13537, 13781, 13903, 14879, 15733, 16831, 17807, 17929, 18539, 18661, 19759, 20369
OFFSET
1,1
COMMENTS
Primes 6217 and 13537 are such that p!-2^p+1 is (probably) prime. - M. F. Hasler, Apr 09 2015
LINKS
MATHEMATICA
Select[Prime[Range[2600]], MemberQ[{56}, Mod[#, 61]] &] (* Vincenzo Librandi, Sep 05 2012 *)
Select[Range[56, 21000, 61], PrimeQ] (* Harvey P. Dale, Feb 21 2024 *)
PROG
(Magma) [p: p in PrimesUpTo(21000) | p mod 61 eq 56 ] ; // Vincenzo Librandi, Sep 05 2012
(PARI) select(p->p%61==56, primes(2000)) \\ M. F. Hasler, Apr 09 2015
CROSSREFS
Cf. A000040.
Sequence in context: A201787 A289390 A118574 * A065098 A256378 A256377
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Jul 11 2008
STATUS
approved