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A142005 Primes congruent to 1 mod 31. 28
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.

Sequence in context: A190567 A060339 A046016 * A059225 A157717 A113155

Adjacent sequences:  A142002 A142003 A142004 * A142006 A142007 A142008

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jul 11 2008

STATUS

approved

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Last modified January 15 20:47 EST 2019. Contains 319184 sequences. (Running on oeis4.)