A142422 Primes congruent to 10 mod 49.

59, 157, 353, 647, 941, 1039, 1627, 1823, 2411, 2803, 2999, 3391, 3881, 4273, 4567, 4861, 5351, 5449, 5743, 5939, 6037, 7213, 7507, 7703, 8291, 8389, 9173, 9467, 9859, 10937, 11329, 12113, 12211, 12799, 13093, 13681, 13877, 14563, 14759, 15053, 15641, 15739

Offset

1,1

Links

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

Formula

a(n) ~ 42n log n. - Charles R Greathouse IV, Jul 03 2016

Mathematica

Select[Prime[Range[2500]], MemberQ[{10}, Mod[#, 49]] &] (* Vincenzo Librandi, Aug 27 2012 *)
Select[Range[10, 16000, 49], PrimeQ] (* Harvey P. Dale, Mar 27 2017 *)

Prog

(Magma) [p: p in PrimesUpTo(16000) | p mod 49 eq 10]; // Vincenzo Librandi, Aug 27 2012
(PARI) is(n)=isprime(n) && n%49==10 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040.

Sequence in context: A118154 A033671 A122702 * A255352 A044391 A044772

Adjacent sequences: A142419 A142420 A142421 * A142423 A142424 A142425

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved