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%I #4 Nov 25 2013 07:59:50
%S 4,16,19,50,124,575,3144,4295,6598,187278,794064,352184,3216594,
%T 72624593,302124719,211890512,873813773,37925335274,205775541009,
%U 64287205753,114754329270,28290860713744,148492292915657,9028872587264
%N Number of (n+1)X(2+1) 0..3 arrays x(i,j) with every row sum{j*x(i,j), j=1..2+1} equal, and every column sum{i*x(i,j), i=1..n+1} equal, with top left element <= 1
%C Column 2 of A232526
%H R. H. Hardin, <a href="/A232524/b232524.txt">Table of n, a(n) for n = 1..29</a>
%e Some solutions for n=7
%e ..1..3..1....0..3..1....0..3..2....0..1..2....1..1..2....0..0..3....0..3..0
%e ..3..2..1....0..3..1....3..0..3....2..3..0....0..0..3....0..0..3....2..2..0
%e ..1..3..1....3..0..2....1..1..3....3..1..1....3..3..0....1..1..2....2..2..0
%e ..2..1..2....0..0..3....3..0..3....3..1..1....0..0..3....2..2..1....2..2..0
%e ..3..2..1....0..0..3....0..3..2....3..1..1....1..1..2....3..3..0....0..3..0
%e ..2..1..2....0..0..3....1..1..3....0..1..2....3..3..0....2..2..1....3..0..1
%e ..1..0..3....3..3..0....3..3..1....0..1..2....3..3..0....0..0..3....0..0..2
%e ..1..3..1....3..3..0....3..3..1....1..2..1....0..0..3....2..2..1....0..0..2
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 25 2013
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