%I #10 Nov 17 2015 21:11:22
%S 0,0,1,2,1,3,6,13
%N Number of patterns with perimeter n in the planar net 3.3.4.3.4, mirrors and holes are excluded.
%C Inspired by A057729 which is in planar net 3.3.3.3.3.3.
%H Kival Ngaokrajang, <a href="/A260666/a260666.pdf">Illustration of initial terms</a>
%Y Cf. A057729.
%K nonn,more
%O 1,4
%A _Kival Ngaokrajang_, Nov 14 2015