A141932 Primes congruent to 7 mod 25.

7, 107, 157, 257, 307, 457, 557, 607, 757, 857, 907, 1307, 1607, 1657, 1907, 2207, 2357, 2557, 2657, 2707, 2857, 2957, 3257, 3307, 3407, 3457, 3557, 3607, 3907, 4007, 4057, 4157, 4357, 4457, 4507, 4657, 4957, 5107, 5407, 5507, 5557, 5657, 5807, 5857, 6007

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[7, 20000, 25], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Jun 18 2011 *)

Prog

(Magma) [p: p in PrimesUpTo(7000) | p mod 25 eq 7 ]; // Vincenzo Librandi, Aug 16 2012
(PARI) is(n)=isprime(n) && n%25==7 \\ Charles R Greathouse IV, Jul 02 2016

Crossrefs

Cf. A000040.

Sequence in context: A188407 A075021 A138963 * A002687 A354572 A166547

Adjacent sequences: A141929 A141930 A141931 * A141933 A141934 A141935

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved