%I #4 Nov 08 2016 08:37:52
%S 0,120462,114975158,149393609720,191436065235070,244860735613038021,
%T 313290097915534353668,400844111719355445735946,
%U 512863838120564283929797977,656188759746987684995405135741
%N Number of nX7 0..2 arrays with every element plus 1 mod 3 equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) (1,-1) or (1,0), with upper left element zero.
%C Column 7 of A278006.
%H R. H. Hardin, <a href="/A278005/b278005.txt">Table of n, a(n) for n = 1..50</a>
%e Some solutions for n=2
%e ..0..2..1..0..2..2..2. .0..2..0..1..1..2..0. .0..0..0..1..2..0..2
%e ..1..0..2..1..0..1..0. .1..0..1..2..0..1..0. .1..2..2..1..1..0..1
%Y Cf. A278006.
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 08 2016
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