A172569 - OEIS

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

%S 17153136,666569141498660400,178355054529362612768336870400,

%T 113498154592670786286712327731832894830000,

%U 118362260055245042852951157735613048828754466686430336

%N Number of 3*n X 18 0..1 arrays with row sums 6 and column sums n

%H R. H. Hardin, <a href="/A172569/b172569.txt">Table of n, a(n) for n=1..10</a>

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 06 2010