A018141 Powers of fifth root of 10 rounded down.

1, 1, 2, 3, 6, 10, 15, 25, 39, 63, 100, 158, 251, 398, 630, 1000, 1584, 2511, 3981, 6309, 10000, 15848, 25118, 39810, 63095, 100000, 158489, 251188, 398107, 630957, 1000000, 1584893, 2511886, 3981071, 6309573

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn

Links

• Harvey P. Dale, Table of n, a(n) for n = 0..1000

Crossrefs

Cf. A018142, A018143.

Programs

Mathematica

Floor[(10^(1/5))^Range[0,40]] (* Harvey P. Dale, Sep 24 2012 *)

PARI

a(n) = sqrtnint(10^n, 5); \\ Michel Marcus, Jun 26 2024