A135367 Not the sum of three perfect powers (assuming 1, but not 0, is a perfect power).

1, 2, 4, 5, 7, 8, 15, 23, 31, 87, 111, 119, 167, 335, 1391, 1455, 1607, 1679, 1991, 25887, 26375

Offset: 1

Author

Zak Seidov and Giovanni Resta, Feb 24 2008

Keywords

• nonn

Comments

No other terms < 10^9. Presumably the sequence is finite.

Crossrefs

Cf. A113505, A135693, A135393, A135402.

Complement of A074499.