A004236 a(n) = ceiling(10*log(n)).

0, 7, 11, 14, 17, 18, 20, 21, 22, 24, 24, 25, 26, 27, 28, 28, 29, 29, 30, 30, 31, 31, 32, 32, 33, 33, 33, 34, 34, 35, 35, 35, 35, 36, 36, 36, 37, 37, 37, 37, 38, 38, 38, 38, 39, 39, 39, 39, 39, 40, 40, 40, 40, 40, 41

Offset

1,2

Links

Table of n, a(n) for n=1..55.

Mathematica

Ceiling[10*Log[Range[60]]] (* Harvey P. Dale, Jul 22 2019 *)

Crossrefs

Sequence in context: A338597 A356455 A004235 * A153049 A065105 A118797

Adjacent sequences: A004233 A004234 A004235 * A004237 A004238 A004239

Keyword

nonn

Author

N. J. A. Sloane

Status

approved