login
This site is supported by donations to The OEIS Foundation.

 

Logo

Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing.
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A051766 Number of chiral noninvertible knots with n crossings. 1
0, 0, 0, 0, 0, 0, 0, 0, 2, 27, 187, 1103, 6919, 37885, 226580, 1308449 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,9

REFERENCES

Hoste, J.; Thistlethwaite, M.; and Weeks, J. "The First 1,701,936 Knots." Math. Intell., 20, 33-48, Fall 1998.

LINKS

Table of n, a(n) for n=1..16.

Eric Weisstein's World of Mathematics, Knot.

CROSSREFS

Sequence in context: A119351 A098627 A263930 * A058406 A216087 A049070

Adjacent sequences:  A051763 A051764 A051765 * A051767 A051768 A051769

KEYWORD

nonn,nice

AUTHOR

Eric W. Weisstein

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 6 16:24 EST 2019. Contains 329808 sequences. (Running on oeis4.)