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%I #10 Dec 05 2014 02:18:05
%S 0,0,0,0,0,0,1,1,14,30,88,929,989,3859,16557,35017,46506,256901,
%T 256721,1286189,2306003
%N Number of polyhexes with n cells that tile the plane by translation but not by 180-degree rotation (Conway criterion).
%D Branko Grünbaum and G. C. Shephard, Tilings and Patterns. W. H. Freeman, New York, 1987, Section 9.4.
%H Joseph Myers, <a href="http://www.polyomino.org.uk/mathematics/polyform-tiling/">Polyhex tiling</a>
%Y Cf. A070766, A075207, A075209, A075210, A075211, A075212, A075213, A075214, A075215, A075199, A075217.
%K hard,nonn
%O 1,9
%A _Joseph Myers_, Sep 08 2002
%E More terms from _Joseph Myers_, Nov 08 2003
%E More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), May 05 2007
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