|
%I #4 Mar 31 2012 12:36:10
%S 38020,328116,27734942,1239704056,75359054474
%N Number of (n+2)X9 binary arrays with every 2X2 subblock sum equal to some diagonal or antidiagonal neighbor 2X2 subblock sum
%C Column 7 of A187940
%e Some solutions for 4X9
%e ..0..1..0..0..1..1..1..0..0....0..1..0..1..0..0..0..1..0
%e ..0..1..1..1..1..0..0..1..0....0..1..0..0..1..1..1..0..0
%e ..0..0..0..1..0..1..0..0..1....1..0..1..0..0..0..0..0..0
%e ..1..1..0..1..0..0..1..0..0....1..0..1..0..1..1..0..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 16 2011
| 