%I #12 Mar 09 2020 02:43:50
%S 1,2,4,14,22,43,70,139,181,281
%N Arises in the enumeration of "grounds" for lace tessellations.
%H Veronika Irvine, <a href="http://hdl.handle.net/1828/7495">Lace Tessellations: A mathematical model for bobbin lace and an exhaustive combinatorial search for patterns</a>, PhD Dissertation, University of Victoria, 2016. See Table 8.2 on page 146.
%K nonn,more
%O 1,2
%A _N. J. A. Sloane_, Aug 18 2017