%I #8 Apr 27 2021 22:20:27
%S 120,5392,136778,3723370,98015235,2495874984,61836040854,
%T 1498317588826,35650331594818,835527599342816,19334282699326025,
%U 442561024351155220,10035487974561746994,225705889177614527760,5039777091823275662663
%N Number of defective 3-colorings of an n X 7 0..2 array connected horizontally, diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order.
%C Column 7 of A229637.
%H R. H. Hardin, <a href="/A229636/b229636.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A229636/a229636.txt">Empirical recurrence of order 57</a>
%F Empirical recurrence of order 57 (see link above).
%e Some solutions for n=3:
%e 0 1 2 0 2 1 0 0 1 2 1 0 1 2 0 1 0 1 2 1 2
%e 2 1 0 1 0 1 0 0 1 0 1 2 1 0 2 1 0 1 2 1 0
%e 2 1 2 1 0 1 0 0 2 0 1 2 1 1 1 0 2 1 2 1 0
%K nonn
%O 1,1
%A _R. H. Hardin_, Sep 27 2013