A142452 Primes congruent to 45 mod 49.

241, 829, 1123, 1319, 1613, 1907, 2593, 2789, 2887, 3083, 3181, 3671, 3769, 4259, 4357, 4651, 5827, 6121, 6317, 6709, 7297, 7591, 8081, 8179, 8669, 8963, 9257, 9551, 9649, 10139, 10433, 10531, 11119, 11903, 12197, 12491, 12589, 13177, 14549, 14843, 15137

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[{45}, Mod[#, 49]] &] (* Vincenzo Librandi, Aug 28 2012 *)

Prog

(Magma) [p: p in PrimesUpTo(17000) | p mod 49 eq 45]; // Vincenzo Librandi, Aug 28 2012
(PARI) is(n)=isprime(n) && n%49==45 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040.

Sequence in context: A142856 A204355 A159806 * A167739 A119596 A046948

Adjacent sequences: A142449 A142450 A142451 * A142453 A142454 A142455

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved