|
| |
|
|
A055553
|
|
Number of Carmichael numbers (A002997) less than 10^n.
|
|
8
| |
|
|
0, 0, 1, 7, 16, 43, 105, 255, 646, 1547, 3605, 8241, 19279, 44706, 105212, 246683, 585355, 1401644, 3381806, 8220777, 20138200
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,4
|
|
|
REFERENCES
| Richard Pinch, Carmichael Numbers up to 10^20, ANTS 7.
|
|
|
LINKS
| R. G. E. Pinch, The Carmichael numbers up to 10^17
R. G. E. Pinch, The Carmichael numbers up to 10^{17}, April 2005.
R. G. E. Pinch, The Carmichael numbers up to 10^18
R. G. E. Pinch, Carmichael numbers up to 10^18, April 2006.
R. G. E. Pinch, The Carmichael numbers up to 10^21, May 2007; Proceedings of Conference on Algorithmic Number Theory 2007 [From Charles R Greathouse IV Feb 01 2009]
R. G. E. Pinch, ANTS 7 Posters
Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.
Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.
|
|
|
CROSSREFS
| Cf. A002997.
Sequence in context: A036834 A020941 A024625 * A066009 A037241 A154141
Adjacent sequences: A055550 A055551 A055552 * A055554 A055555 A055556
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Eric Weisstein (eric(AT)weisstein.com)
|
|
|
EXTENSIONS
| Updates from Finch's articles sent by Charles R. Greathouse IV, Dec 04 2005, Jul 16 2006, May 29 2007
a(21) from Richard Pinch's paper - Charles R Greathouse IV Feb 01 2009
|
| |
|
|
