A089752 Erroneous version of A264759.

1, 0, 1, 1, 2, 3, 10, 27, 101, 364, 1562

Offset: 1

Author

Slavik Jablan and Radmila Sazdanovic, Jan 08 2004

Keywords

• dead

Comments

Previous name was: Number of projections of alternating knots with n crossings.

The term a(11) = 1562 is likely erroneous. - Andrey Zabolotskiy, Nov 30 2021

References

• Ito, Noboru; and Takimura, Yusuke, The tabulation of prime knot projections with their mirror images up to eight double points. Topol. Proc. 53, 177-199 (2019). [Reference supplied by K. A. Perko, Jr., Jun 09 2019]
• Kirkman T.P.: The enumeration, description and construction of knots of fewer than ten crossings. Trans. Roy. Soc. Edinburgh 32 (1885), 281-309.
• Tait P.G.: On knots. Trans. Roy. Soc. Edin. 28 (1876/77), 145-190.

Links

• Jablan S., Ordering Knots.
• Jablan S., Sazdanovic R., LinKnot.

Extensions

Added a(1) and a(2). - N. J. A. Sloane, Jun 10 2019