A142038 Primes congruent to 9 mod 32.

41, 73, 137, 233, 457, 521, 617, 809, 937, 1033, 1097, 1129, 1193, 1289, 1321, 1481, 1609, 1801, 1993, 2089, 2153, 2281, 2377, 2441, 2473, 2633, 2729, 2857, 2953, 3049, 3209, 3433, 3529, 3593, 3881, 4073, 4201, 4297, 4457, 4649, 4937, 4969, 5417, 5449, 5641

Offset

1,1

Links

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

Formula

a(n) ~ 16n log n. - Charles R Greathouse IV, Jul 03 2016

Mathematica

Select[Prime[Range[800]], Mod[#, 32]==9&] (* Harvey P. Dale, Jun 13 2011 *)
Select[Prime[Range[2000]], MemberQ[{9}, Mod[#, 32]]&] (* Vincenzo Librandi, Aug 18 2012 *)

Prog

(Magma) [p: p in PrimesUpTo(6000) | p mod 32 eq 9 ]; // Vincenzo Librandi, Aug 18 2012
(PARI) is(n)=isprime(n) && n%32==9 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040.

Sequence in context: A362592 A105126 A214643 * A213047 A269426 A224671

Adjacent sequences: A142035 A142036 A142037 * A142039 A142040 A142041

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved