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A142163 Primes congruent to 7 mod 39. 1
7, 163, 241, 397, 631, 709, 787, 1021, 1489, 1567, 1723, 1801, 1879, 2113, 2269, 2347, 2503, 2659, 2971, 3049, 3361, 3517, 3673, 3907, 4219, 4297, 4999, 5077, 5233, 5623, 5701, 5779, 5857, 6091, 6247, 6481, 6637, 6793, 6871, 6949, 7027, 7417, 7573, 7963 (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 03 2016

MATHEMATICA

Select[Prime[Range[3000]], MemberQ[{7}, Mod[#, 39]]&] (* Vincenzo Librandi, Aug 19 2012 *)

PROG

(MAGMA) [p: p in PrimesUpTo(9000) | p mod 39 eq 7 ]; // Vincenzo Librandi, Aug 19 2012

(PARI) is(n)=isprime(n) && n%39==7 \\ Charles R Greathouse IV, Jul 03 2016

CROSSREFS

Cf. A000040.

Sequence in context: A160454 A217241 A317727 * A201179 A218998 A220921

Adjacent sequences:  A142160 A142161 A142162 * A142164 A142165 A142166

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jul 11 2008

STATUS

approved

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Last modified May 9 23:39 EDT 2021. Contains 343746 sequences. (Running on oeis4.)