A141997 Primes congruent to 21 mod 29.

79, 137, 311, 601, 659, 1123, 1181, 1297, 1471, 1877, 1993, 2341, 2399, 2689, 3037, 3559, 3617, 3733, 3907, 4139, 4603, 4951, 5009, 5531, 5647, 5821, 5879, 6053, 6343, 6691, 7039, 7213, 7561, 7793, 8431, 8663, 8779, 8837, 9011, 9127, 9533, 9649, 10867, 11273

Offset: 1

Author

N. J. A. Sloane, Jul 11 2008

Keywords

• nonn
• easy

Links

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

Crossrefs

Cf. A000040, A141977, A141978.

Programs

Magma

[p: p in PrimesUpTo(12000) | p mod 29 eq 21 ]; // Vincenzo Librandi, Aug 17 2012

Mathematica

Select[Range[21,20000,29],PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Apr 07 2011 *)

PARI

is(n)=isprime(n) && n%29==21 \\ Charles R Greathouse IV, Jul 03 2016

Formula

a(n) ~ 28n log n. - Charles R Greathouse IV, Jul 03 2016