|
%I #4 Mar 31 2012 12:36:10
%S 3188,14308,435194,7443374,167909728,3490809390,75359054474,
%T 1600390024874,34388021244382,736688645134204,15821989912283976,
%U 339477706692286110
%N Number of (n+2)X7 binary arrays with every 2X2 subblock sum equal to some diagonal or antidiagonal neighbor 2X2 subblock sum
%C Column 5 of A187940
%e Some solutions for 4X7
%e ..0..0..0..1..1..0..1....1..1..1..0..1..1..0....1..0..1..0..0..0..0
%e ..0..1..0..1..0..1..1....0..1..0..1..0..1..0....0..1..1..1..1..1..1
%e ..0..0..0..0..1..1..1....1..1..1..1..0..1..1....0..0..0..1..0..0..0
%e ..1..0..1..1..1..1..0....0..1..0..0..1..0..0....1..1..0..1..1..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 16 2011
| 