%I #6 Apr 26 2015 18:46:28

%S 1,44,28681,122975608,2217051589200,127676780106968400,

%T 19483897303054057473600,6882009860546294146142870400,

%U 5078640963785630003833500263433600

%N Number of 2*n X n 0..3 arrays with row sums 3 and column sums 6.

%H R. H. Hardin, <a href="/A172753/b172753.txt">Table of n, a(n) for n=1..42</a>

%K nonn

%O 1,2

%A _R. H. Hardin_, Feb 06 2010