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Number of 5Xn 0..3 arrays with rows unimodal and antidiagonals nondecreasing
1

%I #6 Aug 11 2014 22:45:51

%S 1024,160000,4357084,54177872,451319098,2981774784,17178450136,

%T 91585310015,466549088803,2294426837986,10864811370660,49206477503159,

%U 211954893113813,865842155983471,3352909875833504,12323194613924281

%N Number of 5Xn 0..3 arrays with rows unimodal and antidiagonals nondecreasing

%C Row 5 of A224204

%H R. H. Hardin, <a href="/A224207/b224207.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A224207/a224207.txt">Empirical polynomial of degree 30</a>

%F Empirical polynomial of degree 30 (see link above)

%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..2....2..2..0....2..2..0....2..0..0....2..2..1....0..2..0....0..0..2

%e ..1..2..0....2..0..0....3..3..0....3..3..3....2..2..0....2..2..2....0..2..1

%e ..3..2..0....0..0..0....3..1..0....3..3..0....3..2..0....2..2..1....3..2..1

%e ..2..0..0....3..3..3....2..1..1....3..0..0....3..2..0....3..3..2....2..2..2

%K nonn

%O 1,1

%A _R. H. Hardin_ Apr 01 2013