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A172572 Number of 3*n X 6 0..1 arrays with row sums 2 and column sums n 1

%I

%S 90,67950,90291600,154700988750,306407299538340,666569141498660400,

%T 1548539246648239560000,3776577900841430197548750,

%U 9561215418596022668009737500,24935177268489106332174087326700

%N Number of 3*n X 6 0..1 arrays with row sums 2 and column sums n

%H R. H. Hardin, <a href="/A172572/b172572.txt">Table of n, a(n) for n=1..33</a>

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 06 2010

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Last modified April 24 22:18 EDT 2019. Contains 322446 sequences. (Running on oeis4.)