|
| |
|
|
A067850
|
|
Highest power of 2 not exceeding n!.
|
|
12
| |
|
|
0, 0, 1, 2, 4, 6, 9, 12, 15, 18, 21, 25, 28, 32, 36, 40, 44, 48, 52, 56, 61, 65, 69, 74, 79, 83, 88, 93, 97, 102, 107, 112, 117, 122, 127, 132, 138, 143, 148, 153, 159, 164, 169, 175, 180, 186, 191, 197, 202, 208, 214, 219, 225, 231, 237, 242, 248, 254, 260, 266
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,4
|
|
|
COMMENTS
| 2^a(n) <= n! < 2^[a(n)+1]
|
|
|
FORMULA
| floor(log[2](n!)). - Vladeta Jovovic (vladeta(AT)eunet.rs), Feb 18 2002
|
|
|
MATHEMATICA
| f[n_] := Block[{k = 0}, While[2^k <= n!, k++ ]; k--; k]; Table[ f[n], {n, 0, 60} ]
|
|
|
CROSSREFS
| Cf. A000142.
Cf. A003070 (minimum number of bits to represent n!)
Sequence in context: A130664 A014011 A064424 * A130240 A143118 A162800
Adjacent sequences: A067847 A067848 A067849 * A067851 A067852 A067853
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Lekraj Beedassy (blekraj(AT)yahoo.com), Feb 15 2002
|
|
|
EXTENSIONS
| Edited and extended by Robert G. Wilson v (rgwv(AT)rgwv.com), Feb 16 2002
|
| |
|
|
