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A172735 Number of n X n 0..3 arrays with row sums 9 and column sums 9 1

%I

%S 0,0,1,2008,45934340,3875209794400,1031515670404216935,

%T 771548465309275841582080,1469748355306450464225368161315,

%U 6564303619112746449775184462681016600

%N Number of n X n 0..3 arrays with row sums 9 and column sums 9

%H R. H. Hardin, <a href="/A172735/b172735.txt">Table of n, a(n) for n=1..15</a>

%K nonn

%O 1,4

%A _R. H. Hardin_ Feb 06 2010

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Last modified August 16 00:08 EDT 2022. Contains 356150 sequences. (Running on oeis4.)