%I #11 Nov 10 2023 03:02:04

%S 1,1,1,3,3,9,17,44

%N Number of knots with unknotting number U=1.

%D A. Kawauchi, A Survey of Knot Theory, Birkhäuser, Basel, Boston, Berlin, 1996.

%H Slavik Jablan, <a href="http://www.mi.sanu.ac.rs/vismath/sl/index.html">Ordering Knots</a>.

%H Slavik Jablan and Radmila Sazdanovic, <a href="http://www.mi.sanu.ac.rs/vismath/linknot/index.html">LinKnot</a>.

%Y Cf. A078477.

%K nonn,more

%O 3,4

%A Slavik Jablan and Radmila Sazdanovic, Jan 10 2004