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%I #7 Jun 20 2022 17:33:39
%S 280,1720,10344,65048,395992,2497560,15235088,96142104,586688280,
%T 3702734168,22596846536,142617229960,870368867864,5493248738432,
%U 33524459064760,211586539448504,1291281038431688,8149802725166840
%N Number of (n+1) X (1+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
%H R. H. Hardin, <a href="/A234905/b234905.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 55*a(n-2) -725*a(n-4) +3663*a(n-6) -7525*a(n-8) +6335*a(n-10) -1805*a(n-12).
%e Some solutions for n=4:
%e 0 2 5 4 5 7 1 0 7 5 5 2 4 0 4 7 1 3 3 1
%e 4 7 7 5 0 3 6 4 2 1 2 0 6 3 3 5 0 1 7 6
%e 1 5 4 3 4 6 3 0 6 4 5 2 2 0 6 7 2 4 2 0
%e 3 6 7 5 1 4 7 3 3 2 2 0 3 2 1 3 0 1 7 4
%e 1 5 5 2 2 6 5 2 6 4 7 6 6 4 4 7 3 5 6 2
%Y Column 1 of A234911.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 01 2014
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