%I #5 Mar 31 2012 12:36:58
%S 3188647,4631370535,6726865579687,9803443695486967,
%T 14294949784964335495,20848169781599252276647,
%U 30407052005824642303153447,44349315527117554056938865367,64684656141868016921281663326727
%N Number of (n+1)X8 0..3 arrays with no 2X2 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..3 introduced in row major order
%C Column 7 of A203878
%H R. H. Hardin, <a href="/A203877/b203877.txt">Table of n, a(n) for n = 1..21</a>
%e Some solutions for n=4
%e ..0..1..0..1..1..0..2..3....0..1..0..2..1..0..1..0....0..0..1..0..0..1..0..2
%e ..2..1..2..3..2..0..1..3....2..2..3..3..1..0..1..0....3..2..1..2..2..3..0..1
%e ..2..0..0..3..1..0..2..2....0..0..1..2..1..3..1..2....0..0..3..3..1..1..2..1
%e ..2..3..1..2..2..3..1..1....1..2..1..2..0..0..1..0....1..1..1..0..0..3..0..1
%e ..1..3..0..0..1..3..2..3....3..2..1..2..1..3..1..3....2..0..2..2..1..1..0..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 07 2012