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%I #4 Nov 27 2016 07:15:14
%S 456,121520,28637916,6410559865,1351385130108,268284486351027,
%T 50067074390669892,8732216738504713198,1415177080112634284232,
%U 212485358907612452321760,29562031801069787043980684
%N Number of nX5 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly one mistake.
%C Column 5 of A278734.
%H R. H. Hardin, <a href="/A278731/b278731.txt">Table of n, a(n) for n = 1..50</a>
%e Some solutions for n=2
%e ..1..3..3..2..1. .1..3..2..2..0. .3..1..2..1..0. .3..2..1..0..0
%e ..3..2..2..3..1. .2..1..1..0..2. .3..2..0..1..0. .0..1..2..1..1
%Y Cf. A278734.
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 27 2016
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