A172549 - OEIS

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A172549

Number of 2*n X n 0..1 arrays with row sums 4 and column sums 8

%I #4 Mar 31 2012 12:35:40

%S 0,0,0,1,113400,154700988750,617944896216648000,

%T 6637298299496411164868250,176264656064665625137392456544800,

%U 10697695830125272790880922760946584535000

%N Number of 2*n X n 0..1 arrays with row sums 4 and column sums 8

%H R. H. Hardin, <a href="/A172549/b172549.txt">Table of n, a(n) for n=1..25</a>

%K nonn

%O 1,5

%A _R. H. Hardin_ Feb 06 2010