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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A052412 Number of n-crossing knots having symmetry group Z2. 2
0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 14, 57, 210, 712, 2268, 7011 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,10

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 Symmetry.

CROSSREFS

Cf. A052411, A052412, A052413, A052414.

Sequence in context: A037786 A037667 A111468 * A037793 A037093 A135926

Adjacent sequences:  A052409 A052410 A052411 * A052413 A052414 A052415

KEYWORD

nonn,hard

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified July 23 22:27 EDT 2017. Contains 289716 sequences.