Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A055553
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A055553 Number of Carmichael numbers (A002997) less than 10^n. +0
3
0, 0, 1, 7, 16, 43, 105, 255, 646, 1547, 3605, 8241, 19279, 44706, 105212, 246683, 585355, 1401644, 3381806, 8220777 (list; graph; listen)
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.

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.

ANTS 7 Posters

CROSSREFS

Cf. A002997.

Adjacent sequences: A055550 A055551 A055552 this_sequence A055554 A055555 A055556

Sequence in context: A036834 A020941 A024625 this_sequence A066009 A037241 A065099

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

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified October 12 15:26 EDT 2008. Contains 144830 sequences.


AT&T Labs Research