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%I #9 Jun 20 2022 21:28:46
%S 12018,18662,27602,49574,83394,168998,319826,711206,1486338,3544742,
%T 8011922,20148134,48342594,126648998,317958866,860180006,2235976578,
%U 6204457382,16571892242,46910749094,128009555394,368013490598
%N Number of (n+1) X (6+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 6 (constant-stress 1 X 1 tilings).
%H R. H. Hardin, <a href="/A235308/b235308.txt">Table of n, a(n) for n = 1..171</a>
%F Empirical: a(n) = 4*a(n-1) +25*a(n-2) -112*a(n-3) -231*a(n-4) +1260*a(n-5) +875*a(n-6) -7280*a(n-7) -224*a(n-8) +22736*a(n-9) -7980*a(n-10) -36288*a(n-11) +21456*a(n-12) +23040*a(n-13) -17280*a(n-14).
%e Some solutions for n=5:
%e 0 4 2 5 1 4 0 2 5 1 5 0 5 0 4 0 3 0 3 0 4
%e 3 1 5 2 4 1 3 5 2 4 2 3 2 3 1 3 0 3 0 3 1
%e 0 4 2 5 1 4 0 2 5 1 5 0 5 0 5 1 4 1 4 1 5
%e 3 1 5 2 4 1 3 4 1 3 1 2 1 2 1 3 0 3 0 3 1
%e 0 4 2 5 1 4 0 2 5 1 5 0 5 0 4 0 3 0 3 0 4
%e 2 0 4 1 3 0 2 4 1 3 1 2 1 2 2 4 1 4 1 4 2
%Y Column 6 of A235310.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 05 2014
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