A103952 Smallest powerful number such that a(n)-n is also powerful.

9, 27, 4, 8, 9, 214375, 8, 9, 25, 2197, 27, 16, 49, 30459375, 16, 25, 25, 27, 27, 36, 25, 49, 27, 25, 125, 27, 36, 32, 225, 6889, 32, 36, 49, 899236854961, 36, 72, 64, 1369, 64, 49, 49, 518436000667, 243, 108, 49, 289, 72, 49, 81, 675, 100, 196, 125, 81, 64, 64

Offset: 1

Author

Max Alekseyev, Feb 22 2005

Keywords

• nonn

Comments

Sister sequence of a(n)-n is given by A076444.

a(110) > 10^22. - Donovan Johnson, Nov 19 2011

Links

• Donovan Johnson, Table of n, a(n) for n = 1..109

Crossrefs

Cf. A076444, A074954.

Formula

a(n) = A076444(n)+n.

Extensions

Offset corrected by Donovan Johnson, Nov 19 2011