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%I #6 Jun 19 2022 23:42:19
%S 449880,7024396,108591688,1709929028,26695387444,424316463256,
%T 6683714234372,107392220427904,1707887729007672,27776485661813004,
%U 446386639744976512,7358199411212748552,119609164298524638804
%N Number of (n+1) X (4+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3 (constant-stress 1 X 1 tilings).
%H R. H. Hardin, <a href="/A234231/b234231.txt">Table of n, a(n) for n = 1..34</a>
%e Some solutions for n=1:
%e 2 3 2 1 0 4 4 0 1 3 2 4 3 3 2 6 5 7 1 3
%e 4 2 4 0 2 0 3 2 0 5 2 7 3 0 2 4 0 5 2 1
%Y Column 4 of A234233.
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 21 2013
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