OFFSET
0,4
COMMENTS
2^a(n) <= n! < 2^[a(n)+1]
LINKS
Amiram Eldar, Table of n, a(n) for n = 0..10000
FORMULA
floor(log[2](n!)). - Vladeta Jovovic, Feb 18 2002
MATHEMATICA
f[n_] := Block[{k = 0}, While[2^k <= n!, k++ ]; k--; k]; Table[ f[n], {n, 0, 60} ]
PROG
(Magma) [Floor(Log(2, Factorial(k))):k in [0..60]]; // Marius A. Burtea, Nov 06 2019
CROSSREFS
KEYWORD
nonn
AUTHOR
Lekraj Beedassy, Feb 15 2002
EXTENSIONS
Edited and extended by Robert G. Wilson v, Feb 16 2002
STATUS
approved