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%I #21 Mar 03 2017 19:36:13
%S 1,1,2,4,8,18,46,115,300,781,2097,5541
%N Number of free polyominoes with n cells containing a complete self-avoiding walk.
%H Ernest French, <a href="http://fuseki.net/polycover/index.html">Covering Free Polyominos</a>
%Y Cf. A000105, A213376, A283162.
%K nonn,walk,more
%O 1,3
%A _Ernest French_, Mar 21 2015