1,1
Terms > 1000 are often only strong pseudo-primes.
Table of n, a(n) for n=1..4.
Cf. A000043, A057468, A059801, A059802, A062572-A062666.
Sequence in context: A164776 A158084 A141858 * A107174 A041199 A100514
Adjacent sequences: A062647 A062648 A062649 * A062651 A062652 A062653
nonn,hard
Mike Oakes (Mikeoakes2(AT)aol.com), May 18 2001, May 19 2001
approved