A142221 Primes congruent to 24 mod 41.

229, 311, 557, 967, 1049, 1213, 1459, 1787, 1951, 2689, 3181, 3673, 3919, 4001, 4493, 4657, 4903, 5231, 5477, 5641, 6133, 6379, 6871, 7691, 7937, 8101, 8429, 8839, 9413, 10069, 10151, 10889, 11299, 12037, 12119, 12611, 13103, 13267, 13513, 13759, 13841

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.

Programs

Magma

[p: p in PrimesUpTo(17000) | p mod 41 eq 24 ]; // Vincenzo Librandi, Aug 24 2012

Mathematica

Select[Prime[Range[5000]],MemberQ[{24},Mod[#,41]]&] (* Vincenzo Librandi, Aug 24 2012 *)
Select[Range[24,14000,41],PrimeQ] (* Harvey P. Dale, Apr 16 2015 *)

PARI

is(n)=isprime(n) && n%41==24 \\ Charles R Greathouse IV, Jul 03 2016

Formula

a(n) ~ 40n log n. - Charles R Greathouse IV, Jul 03 2016