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%I #4 Nov 24 2016 10:19:52
%S 1,285,10824,234484,3739008,48592635,541463431,5325263364,47098291840,
%T 379621129293,2817194942225,19407777240447,124964309624036,
%U 756392815286668,4325156175914066,23464134450391209,121221027131246039
%N Number of nX3 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly two mistakes.
%C Column 3 of A278634.
%H R. H. Hardin, <a href="/A278629/b278629.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A278629/a278629.txt">Empirical polynomial of degree 70</a>
%F Empirical polynomial of degree 70 (see link above)
%e Some solutions for n=3
%e ..1..2..1. .2..0..2. .1..0..2. .2..0..1. .2..0..0. .2..2..1. .0..1..0
%e ..0..0..0. .0..2..0. .0..0..1. .0..2..1. .2..1..2. .2..1..2. .2..2..2
%e ..1..1..0. .2..2..2. .1..0..1. .1..0..2. .2..0..0. .1..2..1. .1..0..0
%Y Cf. A278634.
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 24 2016
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