OFFSET
1,1
COMMENTS
Motivated by the former (incorrect) definition of A191029.
Also, primes p which have Legendre symbols (p|3) = (p|13) = 1, together with 3 and 13.
PROG
(PARI) select(p->issquare(Mod(p, 39))&&isprime(p), [1..1000])
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
M. F. Hasler, Jan 15 2016
STATUS
approved