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A142328 Primes congruent to 31 mod 45. 2
31, 211, 571, 661, 751, 1021, 1201, 1291, 1381, 1471, 1741, 1831, 2011, 2281, 2371, 2551, 2731, 3001, 3181, 3271, 3361, 3541, 3631, 4261, 4441, 4621, 4801, 5431, 5521, 5701, 5791, 5881, 6151, 6421, 6691, 6781, 6871, 6961, 7321, 7411, 7591, 7681, 7951, 8221 (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) ~ 24n log n. - Charles R Greathouse IV, Jul 02 2016

MATHEMATICA

Select[Prime[Range[1200]], MemberQ[{31}, Mod[#, 45]]&] (* Vincenzo Librandi, Aug 26 2012 *)

PROG

(MAGMA) [p: p in PrimesUpTo(10000) | p mod 45 eq 31]; // Vincenzo Librandi, Aug 26 2012 *)

(PARI) is(n)=isprime(n) && n%45==31 \\ Charles R Greathouse IV, Jul 02 2016

CROSSREFS

Cf. A000040.

Sequence in context: A184058 A096906 A181124 * A022521 A152730 A090027

Adjacent sequences:  A142325 A142326 A142327 * A142329 A142330 A142331

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jul 11 2008

STATUS

approved

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Last modified July 26 16:44 EDT 2021. Contains 346294 sequences. (Running on oeis4.)