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%I #5 Jun 20 2022 18:16:04
%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 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 8 (constant-stress 1 X 1 tilings).
%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
%Y Column 7 of A234738.
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 30 2013
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