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%I #4 May 31 2012 13:01:01
%S 1,37,9019,6470341,10058484751,28744943858947,135992452878101359,
%T 989783189762563737541,10495013926448689085587447,
%U 155433527883236057504375249287,3109085470816411449764436167502547
%N Number of 3Xn 0..n-1 arrays with no column j greater than or equal to than column j-1 in all rows
%C Row 3 of A212943
%H R. H. Hardin, <a href="/A212945/b212945.txt">Table of n, a(n) for n = 1..19</a>
%e Some solutions for n=4
%e ..2..1..2..3....2..2..0..2....1..1..2..0....1..0..3..2....1..0..0..3
%e ..0..1..2..0....2..1..1..0....2..2..1..0....2..1..2..1....0..0..1..1
%e ..0..1..0..2....1..1..2..2....3..2..2..0....1..3..2..0....1..3..1..0
%K nonn
%O 1,2
%A _R. H. Hardin_ May 31 2012
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