A172780 - OEIS

%I #4 Mar 31 2012 12:35:41

%S 2008,122975608,11012437532800,1160317947294167480,

%T 133937216531070195309888,16391575725348461384454895264,

%U 2089345627982707177699421140008960

%N Number of 4*n X 4 0..3 arrays with row sums 3 and column sums 3*n

%H R. H. Hardin, <a href="/A172780/b172780.txt">Table of n, a(n) for n=1..24</a>

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 06 2010