OFFSET
1,6
PROG
(PARI) forprime(q=1, 1000, my(q1=q-1, c=0); forprime(p=1, q-1, issquare((p+1)*q1)&c++); print1(c", ")) \\ M. F. Hasler
CROSSREFS
KEYWORD
nonn
AUTHOR
Creighton Dement, Jun 11 2009
STATUS
approved