OFFSET
0,1
PROG
(PARI) for (i=1, 1500, if(isprime(i) && isprime(2*prime(i)^2-1), print1(i, ", ")))
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
mohammed Bouayoun (mohammed.bouayoun(AT)sanef.com), Feb 19 2004
STATUS
approved