A303122 Least prime of the form k^n + n with k>1, 0 if no such prime exists.

3, 11, 11, 0, 37, 28722900390631, 268435463, 6569, 521, 2069605890837224702290236611, 36028797018963979, 13573982477229290545823357053, 859935929762876868984659981, 4807339234680508004200143948920808143, 32783, 7425108623606394726715087890641, 30491346729331195921

Offset

1,1

Comments

No primes of the form k^n + n exist for n in A097792.

Links

Hugo Pfoertner, Table of n, a(n) for n = 1..100

Example

a(3) = 11 because 2^3 + 3 = 11 is the least prime that can be expressed as k^3 + 3, k > 1.

Crossrefs

Cf. A097792, A303121.

Sequence in context: A038229 A257538 A304052 * A080351 A178709 A168378

Adjacent sequences: A303119 A303120 A303121 * A303123 A303124 A303125

Keyword

nonn

Author

Hugo Pfoertner, Apr 23 2018

Status

approved