1,2

Terms found with PrimeForm. Primes corresponding to 16, 105 and 119 certified with Primo. 7917 corresponds to a 30870-digit probable prime.

Eric Weisstein's World of Mathematics, Integer Sequence Primes

Eric Weisstein's World of Mathematics, Power Difference Prime

17^17 - 16^16 = 808793517812627212561, which is prime, so 16 is a term.

Cf. A134985. Equals A072164 - 1.

Sequence in context: A034419 A066895 A105075 this_sequence A001636 A036588 A099517

Adjacent sequences: A140666 A140667 A140668 this_sequence A140670 A140671 A140672

hard,nonn

Rick L. Shepherd (rshepherd2(AT)hotmail.com), May 21 2008