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A142007
Primes congruent to 3 mod 31.
1
3, 127, 251, 313, 499, 809, 1181, 1367, 1429, 1553, 1801, 1987, 2111, 2297, 2731, 2917, 3041, 3413, 3847, 4157, 4219, 4591, 5087, 5273, 5521, 6079, 6203, 6389, 6451, 6637, 6761, 6823, 6947, 7691, 7753, 7877, 8311, 8807, 9241, 9551, 9613, 9923, 10357, 10667
OFFSET
1,1
LINKS
FORMULA
a(n) ~ 30n log n. - Charles R Greathouse IV, Jul 03 2016
MATHEMATICA
Select[Range[3, 20000, 31], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Apr 07 2011 *)
PROG
(Magma) [p: p in PrimesUpTo(11000) | p mod 31 eq 3]; // Vincenzo Librandi, Aug 06 2012
(PARI) is(n)=isprime(n) && n%31==3 \\ Charles R Greathouse IV, Jul 03 2016
CROSSREFS
Sequence in context: A133122 A139936 A221637 * A339084 A071151 A041867
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Jul 11 2008
STATUS
approved