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Number of polyominoes with n cells that tile the plane by translation but not by 180-degree rotation (Conway criterion).
10

%I #12 Dec 05 2014 03:04:38

%S 0,0,0,0,0,0,0,0,1,2,10,135,142,591,2667,5291,6863,35876,34819,161812,

%T 272329,454465,651720,3441853,3442733

%N Number of polyominoes 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/">Polyomino tiling</a>

%Y Cf. A054359, A075198, A075200, A075201, A075202, A075203, A075204, A075205, A075206, A075208, A075217.

%K hard,nonn

%O 1,10

%A _Joseph Myers_, Sep 08 2002

%E More terms from _Joseph Myers_, Nov 04 2003

%E a(24) and a(25) from _Joseph Myers_, Nov 17 2010