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%I #4 Nov 22 2016 06:52:42
%S 40,1609,57760,2116789,67971132,1796061464,39513263094,743248079740,
%T 12242795030458,179948822861856,2394561544941994,29174653111810701,
%U 328380943500399272,3439574456695348801,33729578625174035514
%N Number of nX3 0..3 arrays with rows and columns in lexicographic nondecreasing order but with exactly one mistake.
%C Column 3 of A278435.
%H R. H. Hardin, <a href="/A278431/b278431.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A278431/a278431.txt">Empirical polynomial of degree 127</a>
%F Empirical polynomial of degree 127 (see link above)
%e Some solutions for n=3
%e ..0..1..1. .0..0..3. .3..0..2. .0..2..0. .2..2..3. .1..1..2. .0..3..3
%e ..3..0..3. .0..2..2. .3..1..2. .2..0..3. .0..2..1. .0..0..3. .3..1..3
%e ..1..3..1. .0..0..0. .3..3..2. .3..1..3. .3..1..1. .3..3..0. .2..3..3
%Y Cf. A278435.
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 22 2016
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