A116584 Number of prime knots with <= n crossings.

0, 0, 1, 2, 4, 7, 14, 35, 84, 249, 801, 2977, 12965, 59937, 313230, 1701935, 9755328, 58021794, 352152252

Offset: 1

Author

Jonathan Vos Post, May 09 2006

Keywords

• nonn
• hard
• more

Links

• Morwen B. Thistlethwaite, Numbers of knots and links with up to 19 crossings. "These numbers have not been thoroughly checked."

Crossrefs

Partial sums of A002863.

Cf. A002864, A086825.

Extensions

a(17)-a(19) added from the data at A002863 by Amiram Eldar, Jul 22 2025