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A142038 Primes congruent to 9 mod 32. 1
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 (list; graph; refs; listen; history; text; internal format)
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: A057540 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

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Last modified January 30 16:32 EST 2023. Contains 359945 sequences. (Running on oeis4.)