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A172664 Number of 3*n X n 0..2 arrays with row sums 4 and column sums 12 1

%I

%S 0,1,352128,8365213132981,2630024635942177123650,

%T 7011583640699581889649892843200,

%U 115401909362364329779895671658357933292000

%N Number of 3*n X n 0..2 arrays with row sums 4 and column sums 12

%H R. H. Hardin, <a href="/A172664/b172664.txt">Table of n, a(n) for n=1..17</a>

%K nonn

%O 1,3

%A _R. H. Hardin_ Feb 06 2010

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Last modified October 2 01:30 EDT 2022. Contains 357191 sequences. (Running on oeis4.)