%I #5 Mar 31 2012 12:35:56
%S 7,16,130,1918,56723,2663589,262752720,52431215293,22708430287929,
%T 21448555991084059
%N Number of (n+1)X(n+1) binary arrays with rows and columns in nondecreasing order and with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one
%C Diagonal of A184071
%e Some solutions for 4X4
%e ..0..0..1..1....0..0..1..1....0..0..1..1....0..1..1..1....0..0..1..1
%e ..0..1..0..1....0..1..0..0....0..1..0..1....1..0..0..0....0..1..0..1
%e ..0..1..1..1....1..0..0..1....0..1..1..1....1..0..1..1....0..1..1..1
%e ..1..0..0..0....1..1..1..0....1..1..0..0....1..1..0..0....1..0..1..1
%e ...
%e ...1..2..3.......1..2..2.......1..2..3.......2..2..2.......1..2..3...
%e ...2..3..3.......2..1..1.......2..3..3.......2..1..2.......2..3..3...
%e ...2..2..2.......3..2..2.......3..3..2.......3..2..2.......2..3..4...
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 09 2011
|