A172910 - OEIS

%I #4 Mar 31 2012 12:35:42

%S 0,44,22119391,649096595660632,496395338691326078075775,

%T 6287689969637354023974752834007500,

%U 936126190440040230109711933212013162356155460

%N Number of 2*n X n 0..6 arrays with row sums 9 and column sums 18

%H R. H. Hardin, <a href="/A172910/b172910.txt">Table of n, a(n) for n=1..10</a>

%K nonn

%O 1,2

%A _R. H. Hardin_ Feb 06 2010