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A142020
Primes congruent to 16 mod 31.
1
47, 109, 233, 419, 853, 977, 1039, 1163, 1597, 1721, 1783, 1907, 2341, 2713, 2837, 3023, 3209, 3271, 3457, 3581, 3643, 3767, 4139, 4201, 4759, 5441, 5503, 5689, 5813, 6247, 6619, 6991, 7177, 7487, 7549, 7673, 8231, 8293, 9161, 9533, 9719, 9781, 9967, 10091
OFFSET
1,1
LINKS
FORMULA
a(n) ~ 30n log n. - Charles R Greathouse IV, Jul 03 2016
MATHEMATICA
Select[Range[16, 20000, 31], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Apr 30 2011 *)
PROG
(Magma) [p: p in PrimesUpTo(12000) | p mod 31 eq 16 ]; // Vincenzo Librandi, Aug 17 2012
(PARI) is(n)=isprime(n) && n%31==16 \\ Charles R Greathouse IV, Jul 03 2016
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Jul 11 2008
STATUS
approved