A142019 Primes congruent to 15 mod 31.

139, 263, 449, 821, 883, 1069, 1193, 1627, 1999, 2309, 2371, 2557, 3301, 3673, 3797, 4231, 4603, 4789, 5099, 5347, 5471, 5657, 5843, 6029, 6091, 6277, 6959, 7207, 7331, 7393, 7517, 7703, 7951, 8447, 8819, 9067, 9377, 9439, 9749, 9811, 10369, 11113, 11299

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Mathematica

Select[Range[15, 20000, 31], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Apr 20 2011 *)

Prog

(Magma) [ p: p in PrimesUpTo(30000) | p mod 31 eq 15 ]; // Vincenzo Librandi, Apr 20 2011
(PARI) is(n)=isprime(n) && n%31==15 \\ Charles R Greathouse IV, Jul 01 2016

Crossrefs

Cf. A000040, A142005, A142006.

Sequence in context: A142396 A268858 A142748 * A142099 A142680 A104959

Adjacent sequences: A142016 A142017 A142018 * A142020 A142021 A142022

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved