%I #6 Dec 18 2015 18:18:04
%S 1,6,2027,27323948,16484968944748,258381047085271692456
%N Number of n X n 0..7 arrays with every 2X2 subblock containing exactly one value repeat, and new values 0..7 introduced in row major order
%C Diagonal of A209527
%e Some solutions for n=5
%e ..0..0..0..0..0....0..0..0..0..0....0..0..0..1..0....0..0..0..0..1
%e ..1..2..1..2..1....1..2..1..2..3....1..2..3..0..2....1..2..1..3..3
%e ..2..3..2..0..0....1..3..3..1..2....0..0..2..0..1....2..0..0..0..1
%e ..1..1..1..1..2....4..4..5..1..4....4..1..0..1..2....1..1..2..1..2
%e ..0..2..0..2..0....5..6..6..5..1....1..2..0..2..0....0..2..0..0..0
%K nonn
%O 1,2
%A _R. H. Hardin_ Mar 10 2012
