A383923 Numbers of the form m^p where both p and (m^(p^2) - 1)/(m^p - 1) are prime.

4, 8, 16, 27, 36, 100, 196, 256, 400, 512, 576, 676, 1296, 1331, 1600, 2916, 3136, 4356, 5476, 7056, 8000, 8100, 8836, 9261, 12100, 13456, 14400, 15376, 15876, 16900, 17576, 17956, 21316, 22500, 24336, 25600, 27000, 28900, 30976, 32400, 33856, 41616, 42436, 44100, 50176, 52900

Offset

1,1

Links

Table of n, a(n) for n=1..46.

Crossrefs

Primes (m^(p^2) - 1)/(m^p - 1) are listed in A383924.

Permutation of A383926.

Cf. A383925.

Sequence in context: A257279 A334151 A299894 * A339026 A025197 A008371

Adjacent sequences: A383920 A383921 A383922 * A383924 A383925 A383926

Keyword

nonn

Author

Max Alekseyev, May 15 2025

Status

approved