A067643 Column 3 of table in A067640.

70, 2352, 47820, 784672, 11515714, 158295072, 2086803540, 26737722400, 335676172480, 4150940757440, 50739269522864, 614607881444256, 7390867767651290

Offset: 0

Author

N. J. A. Sloane, Feb 05 2002

Keywords

• nonn

Links

• J. L. Jacobsen and P. Zinn-Justin, A Transfer Matrix approach to the Enumeration of Knots