|
| |
|
|
A076829
|
|
Floor(log(log(n^n^n)) (or 0 if not finite).
|
|
0
| |
|
|
0, 1, 3, 5, 8, 11, 14, 17, 20, 23, 27, 30, 34, 37, 41, 45, 49, 53, 57, 61, 65, 69, 73, 77, 81, 85, 90, 94, 98, 103, 107, 112, 116, 121, 125, 130, 134, 139, 144, 148, 153, 158, 163, 167, 172, 177, 182, 187, 192, 196, 201, 206, 211, 216, 221, 226, 231, 236, 241, 247
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,3
|
|
|
FORMULA
| a(n) = floor(n*log(n) + log(log(n))).
|
|
|
EXAMPLE
| 3^3^3 = 3^27 = 7625597484987. ln(ln(7625597484987)) = 3.38..., so a(3)= 3.
|
|
|
MATHEMATICA
| Table[ Floor[ n * Log[n] + Log[ Log[n]]], {n, 2, 60}]
|
|
|
CROSSREFS
| Cf. A002488, A000312, A050504.
Sequence in context: A180124 A095375 A129260 * A084505 A084555 A102696
Adjacent sequences: A076826 A076827 A076828 * A076830 A076831 A076832
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| N. Fernandez (primeness(AT)borve.org), Nov 20 2002
|
|
|
EXTENSIONS
| Edited by Robert G. Wilson v (rgwv(AT)rgwv.com), Nov 22 2002
|
| |
|
|
