A186140 - OEIS

%I #4 Mar 31 2012 12:36:04

%S 63009576,58529531286,58311925687818,58096554299749404,

%T 58456633907530057662,58923376595033869477548,

%U 59477821878604876659005166,60068131623385389414240300432

%N Number of (n+1)X9 0..2 arrays with no 2X2 subblock trace equal to any horizontal or vertical neighbor 2X2 subblock trace

%C Column 8 of A186141

%e Some solutions for 3X9

%e ..0..0..0..0..0..1..0..1..1....0..0..0..0..0..1..0..1..1

%e ..0..0..1..0..1..0..1..0..2....0..0..1..0..2..0..0..0..2

%e ..0..1..0..0..0..0..0..2..0....0..1..0..0..0..1..0..2..1

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 13 2011