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%I #9 Apr 27 2021 21:25:11
%S 0,6,396,35182,5655616,1840258874,1279020266434,1956482857537638,
%T 6709261067536603464,52210936089708881164828,
%U 929873887535519786302080272,38136664055521875662056947040494
%N Number of defective 3-colorings of an n X n 0..2 array connected horizontally and vertically with exactly two mistakes, and colors introduced in row-major 0..2 order.
%C Diagonal of A229606.
%e Some solutions for n=3:
%e 0 1 1 0 0 1 0 1 0 0 1 0 0 1 0 0 1 1 0 1 2
%e 1 0 0 1 1 2 0 2 1 1 2 2 0 2 2 0 2 0 2 2 1
%e 2 1 2 0 2 1 0 1 2 0 2 0 1 0 1 1 0 1 2 0 2
%Y Cf. A229606.
%K nonn
%O 1,2
%A _R. H. Hardin_, Sep 26 2013
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