OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Range[4, 50000, 7], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Jun 13 2011 *)
PROG
(Magma) [ p: p in PrimesUpTo(11000) | p mod 7 eq 4 ]; // Vincenzo Librandi, Aug 13 2012
(PARI) is(n)=isprime(n) && n%7==4 \\ Charles R Greathouse IV, Jul 01 2016
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved