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%I #1 May 16 2003 03:00:00
%S 1,0,1,2,3,0,12,40,100,0,1225,6460,28812,0,1037232,9779616
%N Erroneous version of A005160.
%H D. P. Robbins, Symmetry classes of alternating sign matrices, <a href="http://arXiv.org/abs/math.CO/0008045">arXiv:math.CO/0008045</a>
%K dead
%O 1,4
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