A172876 - OEIS

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

%S 0,6,2931721,121455149938696,126089364994137051749175,

%T 2069759825203620045218768697951200,

%U 381163169870068345716673283360625263636254050

%N Number of 2*n X n 0..5 arrays with row sums 9 and column sums 18

%H R. H. Hardin, <a href="/A172876/b172876.txt">Table of n, a(n) for n=1..10</a>

%K nonn

%O 1,2

%A _R. H. Hardin_ Feb 06 2010