OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
Chris Caldwell, Prime test.
MATHEMATICA
Select[Range[4, 20000, 13], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Jun 18 2011 *)
PROG
(Magma) [p: p in PrimesUpTo(4500) | p mod 13 eq 4 ]; // Vincenzo Librandi, Aug 14 2012
(PARI) is(n)=isprime(n) && n%13==4 \\ Charles R Greathouse IV, Jul 01 2016
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Jun Mizuki (suzuki32(AT)sanken.osaka-u.ac.jp), Apr 20 2004
EXTENSIONS
More terms from Pab Ter (pabrlos(AT)yahoo.com), May 24 2004
STATUS
approved