# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a172909 Showing 1-1 of 1 %I A172909 #4 Mar 31 2012 12:35:42 %S A172909 0,85,18852138,160367559138277,28295985978361118312100, %T A172909 67572411262488084551685074297100, %U A172909 1569272515289638694593745151597761337133425 %N A172909 Number of 2*n X n 0..6 arrays with row sums 8 and column sums 16 %H A172909 R. H. Hardin, Table of n, a(n) for n=1..11 %K A172909 nonn %O A172909 1,2 %A A172909 _R. H. Hardin_ Feb 06 2010 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE