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

 

Logo

Annual Appeal: Please make a donation to keep the OEIS running. In 2018 we replaced the server with a faster one, added 20000 new sequences, and reached 7000 citations (often saying "discovered thanks to the OEIS").
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A051767 amphichiral (+) noninvertible knots with n crossings. 1
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 6, 0, 65 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,14

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, Amphichiral Knot.

Eric Weisstein's World of Mathematics, Knot.

CROSSREFS

Sequence in context: A305331 A169769 A191688 * A199044 A156488 A057399

Adjacent sequences:  A051764 A051765 A051766 * A051768 A051769 A051770

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 16 12:31 EST 2018. Contains 318160 sequences. (Running on oeis4.)