%N Number of fixed n-celled polyzebras (or zebra-move-connected polyominoes).
%C A polyzebra is a (2,3) leaper. A polyzebra need not be connected in the usual edge-connected sense.
%Y Cf. A030444 (polyknights).
%A Guenter Stertenbrink (Sterten(AT)aol.com), May 21 2004
%E a(11) from _Joseph Myers_, May 21 2004
%E a(12) (computed by Gadi Aleksandrowicz's program) by _Gill Barequet_, Jun 09 2011