A004259 a(n) = floor(10*log_2(n)).

0, 10, 15, 20, 23, 25, 28, 30, 31, 33, 34, 35, 37, 38, 39, 40, 40, 41, 42, 43, 43, 44, 45, 45, 46, 47, 47, 48, 48, 49, 49, 50, 50, 50, 51, 51, 52, 52, 52, 53, 53, 53, 54, 54, 54, 55, 55, 55, 56, 56, 56, 57, 57, 57, 57

Offset

1,2

Links

Robert Israel, Table of n, a(n) for n = 1..10000

Maple

seq(ilog2(n^10), n=1..100); # Robert Israel, Aug 02 2019

Prog

(Magma) [Floor(10*Log(2, n)):n in [1..55]]; // Marius A. Burtea, Aug 02 2019

Crossrefs

Sequence in context: A232501 A138593 A362010 * A210652 A284804 A006623

Adjacent sequences: A004256 A004257 A004258 * A004260 A004261 A004262

Keyword

nonn

Author

N. J. A. Sloane

Status

approved