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A172785 Number of 5*n X 20 0..3 arrays with row sums 4 and column sums n 1

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

%S 305540235000,54918587341306311174536985000,

%T 85504723470329847456379126545730424791071000000,

%U 349386504852546133438847462576945313875421034231833558901433865000

%N Number of 5*n X 20 0..3 arrays with row sums 4 and column sums n

%H R. H. Hardin, <a href="/A172785/b172785.txt">Table of n, a(n) for n=1..10</a>

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 06 2010

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Last modified March 28 15:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)