A142449 Primes congruent to 41 mod 49.

41, 139, 433, 727, 1021, 1217, 1511, 1609, 2099, 2393, 2687, 3079, 3373, 3863, 4157, 4451, 4549, 5039, 5333, 5431, 6607, 6803, 7489, 8273, 8861, 9547, 9743, 10037, 10331, 10429, 10723, 11213, 11311, 11801, 12487, 12781, 13859, 14153, 14251, 14447, 14741

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

Prog

(Magma) [p: p in PrimesUpTo(17000) | p mod 49 eq 41]; // Vincenzo Librandi, Aug 28 2012
(PARI) is(n)=isprime(n) && n%49==41 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040.

Sequence in context: A321890 A253682 A297398 * A044373 A044754 A254898

Adjacent sequences: A142446 A142447 A142448 * A142450 A142451 A142452

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved