%I #5 Mar 31 2012 12:37:01
%S 33,48,61,87,136,217,347,560,901,1455,2352,3801,6147,9944,16085,26023,
%T 42104,68121,110219,178336,288549,466879,755424,1222297,1977715
%N Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly three ways, and new values 0..1 introduced in row major order
%C Diagonal of A204381
%e Some solutions for n=3
%e ..0..0..0..0..0....0..0..0..1..0....0..0..0..1..0....0..0..0..0..0
%e ..1..1..1..1..1....1..1..1..1..1....1..1..1..1..1....1..1..1..1..1
%e ..0..0..0..0..0....1..1..1..1..1....1..1..1..1..1....0..0..0..0..0
%e ..1..1..1..1..1....1..0..0..0..0....0..0..0..0..0....0..0..0..0..0
%e ..0..0..0..0..0....1..1..1..1..1....0..0..0..0..0....0..1..1..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 14 2012
|