%I #4 Nov 24 2016 10:22:46
%S 1107,932205,541463431,309971214338,175644502146694,94782697883923436,
%T 47369705674953303984,21685396319356730003339,
%U 9098829152955190125398905,3522319073864419078316881080,1269570351401707348639148214535
%N Number of nX7 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly two mistakes.
%C Column 7 of A278634.
%H R. H. Hardin, <a href="/A278633/b278633.txt">Table of n, a(n) for n = 1..19</a>
%e Some solutions for n=1
%e ..1..2..2..0..0..1..0. .1..1..2..0..1..0..0. .1..2..2..1..2..2..2
%Y Cf. A278634.
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 24 2016
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