A142819 Primes congruent to 21 mod 61.

509, 631, 997, 1607, 1973, 2339, 3559, 3803, 4657, 5023, 6121, 7219, 7829, 7951, 8317, 9049, 9293, 9781, 10391, 10513, 11489, 12343, 12953, 13441, 13807, 14051, 14173, 14783, 15149, 15271, 15881, 16369, 16979, 17467, 18077, 18199, 18443, 19541, 20029, 20639

Offset

1,1

Links

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

Mathematica

Select[Prime[Range[2600]], MemberQ[{21}, Mod[#, 61]] &] (* Vincenzo Librandi, Sep 05 2012 *)

Prog

(Magma) [p: p in PrimesUpTo(21000) | p mod 61 eq 21 ]; // Vincenzo Librandi, Sep 05 2012

Crossrefs

Cf. A000040.

Sequence in context: A024019 A159686 A198195 * A183058 A256709 A110025

Adjacent sequences: A142816 A142817 A142818 * A142820 A142821 A142822

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved