%I #12 Jan 16 2023 04:49:23
%S 0,0,1,1,1,2,4,11,24,83,269,1070
%N Number of prime knots on n crossings having Arf invariant 1.
%H KnotInfo, <a href="https://knotinfo.math.indiana.edu/">Table of Knots</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/ArfInvariant.html">Arf Invariant</a>
%e For n <= 5, 3_1, 4_1, 5_1 are the prime knots with Arf Invariant 1. - _Emma Joe Anderson_, Jan 15 2023
%Y Cf. A131433.
%K nonn,more
%O 1,6
%A _Eric W. Weisstein_, Jul 10 2007
%E a(11)-a(12) added using data from the KnotInfo database (see Links above) by _Emma Joe Anderson_, Jan 15 2023