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%I #4 Nov 24 2016 08:44:18
%S 126,8518,439446,21121532,978005050,43853346948,1892563134910,
%T 77595353266488,2984253200734849,106802443365088678,
%U 3546576756421791553,109349563224002187119,3138905373936577741625,84191222241450755762521
%N Number of nX5 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly one mistake.
%C Column 5 of A278627.
%H R. H. Hardin, <a href="/A278624/b278624.txt">Table of n, a(n) for n = 1..101</a>
%e Some solutions for n=2
%e ..1..1..0..2..2. .0..0..1..1..0. .1..1..1..2..1. .0..2..2..2..0
%e ..2..0..1..1..1. .1..0..1..0..1. .2..0..0..1..0. .2..0..0..0..0
%Y Cf. A278627.
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 24 2016
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