OFFSET
1,2
LINKS
Zak Seidov, Table of n, a(n) for n = 1..1000
PROG
(PARI) p=2; q=3; n=0; forprime(r=5, 1e3, n++; if(isprime(p*q+p*r+q*r), print1(n", ")); p=q; q=r) \\ Charles R Greathouse IV, Jan 13 2012
CROSSREFS
KEYWORD
nonn
AUTHOR
Zak Seidov, Jan 13 2012
STATUS
approved