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%I #9 Apr 27 2021 21:31:50
%S 0,6,244,10227,960325,170405645,61836040854,45634751291449,
%T 69219300810586905,216612095709360988933,1408049695722118625807058,
%U 18999842797533792961661827884
%N Number of defective 3-colorings of an n X n 0..2 array connected horizontally, diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order.
%C Diagonal of A229637.
%e Some solutions for n=3:
%e 0 0 1 0 1 2 0 1 0 0 1 2 0 1 0 0 0 1 0 1 2
%e 1 2 0 1 0 2 0 1 2 2 1 2 2 0 2 1 0 2 0 1 2
%e 1 2 1 2 0 2 0 1 1 0 2 0 2 0 1 1 0 1 2 1 1
%Y Cf. A229637.
%K nonn
%O 1,2
%A _R. H. Hardin_, Sep 27 2013
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