A141941 Primes congruent to 18 mod 25.

43, 193, 293, 443, 593, 643, 743, 1093, 1193, 1493, 1543, 1693, 1993, 2143, 2243, 2293, 2393, 2543, 2593, 2693, 2843, 3343, 3593, 3643, 3793, 3943, 4093, 4243, 4493, 4643, 4793, 4943, 4993, 5393, 5443, 5693, 5743, 5843, 6043, 6143, 6343, 6793, 7043, 7193

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[18, 20000, 25], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Jun 15 2011 *)

Prog

(Magma) [p: p in PrimesUpTo(8000) | p mod 25 eq 18 ]; // Vincenzo Librandi, Aug 16 2012
(PARI) is(n)=isprime(n) && n%25==18 \\ Charles R Greathouse IV, Jul 02 2016

Crossrefs

Cf. A000040.

Sequence in context: A138631 A309905 A142115 * A197887 A342509 A145650

Adjacent sequences: A141938 A141939 A141940 * A141942 A141943 A141944

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved