%I #4 Apr 02 2013 14:50:39
%S 16384,16000000,537465766,6172817040,45275725025,274116529912,
%T 1597855917875,9622753439382,59980603070388,376494813177039,
%U 2313407919278369,13634051825496929,76116429236458083,400003671053134168
%N Number of 7Xn 0..3 arrays with diagonals and rows unimodal and antidiagonals nondecreasing
%C Row 7 of A224281
%H R. H. Hardin, <a href="/A224286/b224286.txt">Table of n, a(n) for n = 1..46</a>
%e Some solutions for n=3
%e ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
%e ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
%e ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..1....0..0..0
%e ..0..2..0....2..2..2....3..0..0....0..0..0....0..0..0....3..2..2....3..2..0
%e ..2..2..2....3..2..2....3..2..0....1..2..0....0..1..0....2..2..0....3..0..0
%e ..2..2..2....3..2..2....3..2..2....2..1..0....1..0..0....2..3..2....3..1..0
%e ..3..3..2....2..2..2....3..2..1....1..2..1....3..3..1....3..3..0....2..3..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Apr 02 2013