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A142011
Primes congruent to 7 mod 31.
1
7, 131, 193, 317, 379, 503, 751, 937, 1061, 1123, 1433, 1619, 1867, 2053, 2239, 2549, 2797, 3169, 3541, 3727, 3851, 4099, 4409, 4657, 4967, 5153, 5711, 5897, 6269, 6703, 6827, 7013, 7757, 8191, 8377, 8501, 8563, 9059, 9431, 9679, 9803, 10733, 11353, 12097
OFFSET
1,1
LINKS
FORMULA
a(n) ~ 30n log n. - Charles R Greathouse IV, Jul 03 2016
MATHEMATICA
Select[Range[7, 20000, 31], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Apr 20 2011 *)
PROG
(Magma) [ p: p in PrimesUpTo(30000) | p mod 31 eq 7 ]; // Vincenzo Librandi, Apr 20 2011
(PARI) is(n)=isprime(n) && n%31==7 \\ Charles R Greathouse IV, Jul 03 2016
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Jul 11 2008
STATUS
approved