A141931 Primes congruent to 6 mod 25.

31, 131, 181, 281, 331, 431, 631, 881, 1031, 1181, 1231, 1381, 1481, 1531, 1831, 1931, 2081, 2131, 2281, 2381, 2531, 2731, 3181, 3331, 3581, 3631, 3881, 3931, 4231, 4481, 4831, 4931, 5081, 5231, 5281, 5381, 5431, 5531, 5581, 5881, 5981, 6131, 6481, 6581

Offset

1,1

Links

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

Formula

a(n) ~ 20n log n. - Charles R Greathouse IV, Jul 02 2016

Mathematica

Select[Range[6, 20000, 25], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Jun 18 2011 *)

Prog

(Magma) [p: p in PrimesUpTo(8000) | p mod 25 eq 6 ]; // Vincenzo Librandi, Aug 16 2012
(PARI) is(n)=isprime(n) && n%25==6 \\ Charles R Greathouse IV, Jul 02 2016

Crossrefs

Cf. A000040.

Sequence in context: A045244 A045229 A038475 * A044363 A044744 A167388

Adjacent sequences: A141928 A141929 A141930 * A141932 A141933 A141934

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved