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%I #7 Jun 18 2022 23:38:58
%S 15520,19060,23000,31504,41704,64168,93992,160888,260680,487960,
%T 867560,1744024,3354184,7125208,14577512,32303128,69232840,158470360,
%U 351398120,824485144,1873576264,4478463448,10354825832,25091436568,58718701000
%N Number of (n+1) X (8+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 5 (constant-stress 1 X 1 tilings).
%C Column 8 of A235280.
%H R. H. Hardin, <a href="/A235278/b235278.txt">Table of n, a(n) for n = 1..109</a>
%F Empirical: a(n) = a(n-1) +15*a(n-2) -15*a(n-3) -80*a(n-4) +80*a(n-5) +180*a(n-6) -180*a(n-7) -144*a(n-8) +144*a(n-9).
%e Some solutions for n=5:
%e 1 2 0 3 1 4 1 2 1 1 3 0 4 0 4 1 4 1
%e 4 0 3 1 4 2 4 0 4 4 1 3 2 3 2 4 2 4
%e 1 2 0 3 1 4 1 2 1 1 3 0 4 0 4 1 4 1
%e 4 0 3 1 4 2 4 0 4 3 0 2 1 2 1 3 1 3
%e 1 2 0 3 1 4 1 2 1 1 3 0 4 0 4 1 4 1
%e 4 0 3 1 4 2 4 0 4 3 0 2 1 2 1 3 1 3
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 05 2014