A219284 Primes of the form 17^n - 16^n.

371281, 141903217

Offset: 1

Author

Vincenzo Librandi, Nov 24 2012

Keywords

• nonn
• bref

Comments

a(3) has 98 digits and a(6) has 3491 digits.

Links

• Vincenzo Librandi, Table of n, a(n) for n = 1..5

Crossrefs

Cf. A062583.

Programs

Magma

[a: n in [0..30] | IsPrime(a) where a is 17^n - 16^n];

Mathematica

Select[Table[17^n - 16^n, {n, 0, 300}], PrimeQ]