OFFSET
1,1
PROG
(PARI) apmb(a, b, n) = { forprime(x=2, n, y=a^x-b^x; if(!ispseudoprime(y), print1(x", "); ) ) }
CROSSREFS
KEYWORD
nonn
AUTHOR
Cino Hilliard, Oct 26 2003
EXTENSIONS
Checked by Ray Chandler, Apr 24 2007
STATUS
approved