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%I #4 Nov 23 2016 15:12:46
%S 0,395,53360,5985658,442089480,23974522382,1079873605870,
%T 43032494710944,1543764930874168,49834351539480647,
%U 1446202850114983762,37846411522577242503,898595003941582092008,19500004359246529094765
%N Number of nX3 0..3 arrays with rows and columns in lexicographic nondecreasing order but with exactly three mistakes.
%C Column 3 of A278610.
%H R. H. Hardin, <a href="/A278606/b278606.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=3
%e ..3..1..0. .3..2..2. .3..3..2. .3..3..0. .3..2..3. .3..0..0. .3..3..1
%e ..0..0..3. .3..2..2. .1..1..1. .1..0..3. .2..1..1. .1..2..0. .1..3..2
%e ..3..2..2. .1..2..0. .3..1..2. .3..2..3. .0..3..3. .2..0..0. .1..2..2
%Y Cf. A278610.
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 23 2016
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