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A052402 Number of invertible knots with n crossings. 1
0, 0, 1, 1, 2, 3, 7, 20, 47, 132, 365, 1032, 3069, 8854, 26712, 78830 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

REFERENCES

Jablan S. and Sazdanovic R., LinKnot: Knot Theory by Computer, World Scientific Press, 2007.

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, Invertible Knot.

CROSSREFS

Equals A051769+A052400.

Sequence in context: A172976 A171655 A006073 * A222939 A222867 A222776

Adjacent sequences:  A052399 A052400 A052401 * A052403 A052404 A052405

KEYWORD

nonn,nice

AUTHOR

Eric W. Weisstein

STATUS

approved

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Last modified November 23 16:20 EST 2014. Contains 249851 sequences.