A142005 - OEIS

A142005

Primes congruent to 1 mod 31.

311, 373, 683, 1117, 1303, 1427, 1489, 1613, 1861, 2357, 2543, 2729, 2791, 3163, 3659, 3907, 4093, 4217, 4651, 5023, 5147, 5209, 5333, 5519, 5581, 5953, 6263, 6449, 6883, 7069, 7193, 7937, 8123, 8681, 8867, 8929, 9239, 9859, 10169, 10789, 11161, 11471, 11657

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

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

MATHEMATICA

Select[Range[1, 20000, 31], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Apr 07 2011 *)

PROG

(Magma) [p: p in PrimesUpTo(12000) | p mod 31 eq 1 ]; // Vincenzo Librandi, Aug 17 2012

(PARI) is(n)=isprime(n) && n%31==1 \\ Charles R Greathouse IV, Jul 01 2016

CROSSREFS

Cf. A000040, A141977.