A141934 Primes congruent to 9 mod 25.

59, 109, 359, 409, 509, 659, 709, 809, 859, 1009, 1109, 1259, 1409, 1459, 1559, 1609, 1709, 1759, 2309, 2459, 2609, 2659, 2909, 3109, 3209, 3259, 3359, 3559, 3659, 3709, 4159, 4259, 4409, 4759, 4909, 5009, 5059, 5209, 5309, 5659, 6359, 6659, 6709, 6959, 7109

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[9, 20000, 25], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Jun 18 2011 *)

Prog

(Magma) [p: p in PrimesUpTo(8000) | p mod 25 eq 9 ]; // Vincenzo Librandi, Aug 16 2012
(PARI) is(n)=isprime(n) && n%25==9 \\ Charles R Greathouse IV, Jul 02 2016

Crossrefs

Cf. A000040.

Sequence in context: A231978 A180947 A060259 * A044246 A044627 A050230

Adjacent sequences: A141931 A141932 A141933 * A141935 A141936 A141937

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved