1,1

3,31,3119,311951,31195117 are all prime.

Sequence in context: A147076 A027537 A002380 this_sequence A038455 A067802 A139723

Adjacent sequences: A073673 A073674 A073675 this_sequence A073677 A073678 A073679

base,more,nonn

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Aug 11 2002