OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Range[33, 20000, 61], PrimeQ] (* or *) Select[Prime[Range[2500]], Mod[ #, 61]==33&] (* Harvey P. Dale, Nov 12 2011 and Oct 31 2013 *)
Select[Prime[Range[2500]], MemberQ[{33}, Mod[#, 61]] &] (* Vincenzo Librandi, Sep 05 2012 *)
PROG
(Magma) [p: p in PrimesUpTo(20000) | p mod 61 eq 33] ; // Vincenzo Librandi, Sep 05 2012
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Jul 11 2008
STATUS
approved