The OEIS is supported by the many generous donors to the OEIS Foundation.
%I #5 Mar 31 2012 12:37:04
%S 166,10416,1858301,916967622,1294422106052,5180662454351231,
%T 58780083916064047171
%N Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally at least two different ways, and new values 0..1 introduced in row major order
%C Diagonal of A204971
%e Some solutions for n=3
%e ..0..0..0..0..1....0..0..0..0..0....0..0..0..0..1....0..0..1..0..0
%e ..1..1..1..1..0....1..1..0..1..0....1..0..0..0..0....1..0..1..1..1
%e ..0..1..1..1..1....1..1..1..1..1....0..1..0..1..1....0..0..1..1..1
%e ..0..0..1..1..1....1..1..1..1..0....1..1..1..1..1....1..0..1..0..0
%e ..1..1..1..0..0....0..1..0..0..1....1..1..0..0..0....1..0..0..0..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 21 2012