%I #5 Mar 31 2012 12:36:01
%S 14860,1642258,104300522,8249951270,596127705496,44794190542169,
%T 3312295977303361,246617622494198862,18309597796319735490,
%U 1361005199466774826914,101116081602410498451624
%N Number of (n+1)X9 binary arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant
%C Column 8 of A185487
%H R. H. Hardin, <a href="/A185486/b185486.txt">Table of n, a(n) for n = 1..21</a>
%e Some solutions for 3X9
%e ..1..0..0..0..0..0..0..1..0....1..0..0..0..0..1..1..1..0
%e ..0..0..0..0..0..0..1..1..0....0..0..0..0..0..0..0..0..0
%e ..0..0..0..0..1..1..1..0..0....0..0..0..1..1..1..0..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 28 2011