%I
%S 426120,760608,1283880,2723040,5395128,13083552,29705640,79520352,
%T 200901240,578901408,1586287080,4838786400,14115215928
%N Number of (n+1)X(7+1) 0..7 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 8 (constant stress 1X1 tilings)
%C Column 7 of A234738
%e Some solutions for n=1
%e ..2..6..1..7..0..5..3..5....0..5..1..5..2..7..0..5....6..1..7..1..7..0..6..3
%e ..6..2..5..3..4..1..7..1....4..1..5..1..6..3..4..1....2..5..3..5..3..4..2..7
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 30 2013
