A141928 Primes congruent to 2 mod 25.

2, 127, 227, 277, 577, 677, 727, 827, 877, 977, 1277, 1327, 1427, 1627, 1777, 1877, 2027, 2377, 2477, 2677, 2777, 2927, 3527, 3677, 3727, 3877, 4027, 4127, 4177, 4327, 4877, 5077, 5227, 5477, 5527, 5827, 5927, 6277, 6427, 6577, 6827, 6977, 7027, 7127, 7177

Offset

1,1

Links

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

Formula

{2} UNION A142466. - R. J. Mathar, Jul 20 2008

a(n) ~ 20n log n. - Charles R Greathouse IV, Jul 03 2016

Mathematica

Select[Range[2, 20000, 25], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Jun 18 2011 *)

Prog

(Magma) [p: p in PrimesUpTo(8000) | p mod 25 eq 2 ]; // Vincenzo Librandi, Aug 16 2012
(PARI) is(n)=isprime(n) && n%25==2 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040, A141930, A141931, A141932.

Sequence in context: A167414 A065381 A274123 * A343184 A062588 A125634

Adjacent sequences: A141925 A141926 A141927 * A141929 A141930 A141931

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved