A224048 - OEIS

%I #4 Apr 01 2013 07:11:48

%S 610,59792,1801402,28403642,310514900,2701569493,20096076442,

%T 133729094355,821109158656,4743773544158,26052580835518,

%U 136551839375912,683560425650120,3267176210453459,14908991892646144,64985125266087385

%N Number of nX6 0..3 arrays with rows and columns unimodal and antidiagonals nondecreasing

%C Column 6 of A224050

%H R. H. Hardin, <a href="/A224048/b224048.txt">Table of n, a(n) for n = 1..34</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Apr 01 2013