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%I #4 Mar 04 2016 12:06:53
%S 450,524160,326697720,170119348800,81208264293720,36821411380183680,
%T 16136599337765506680,6902518041829140001920,
%U 2899610192068539725611800,1201070898923243105905234560,491952252969600904794435746040
%N Number of nX4 0..5 arrays with some element plus some horizontally or vertically adjacent neighbor totalling five exactly once.
%C Column 4 of A269767.
%H R. H. Hardin, <a href="/A269763/b269763.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 798*a(n-1) -180699*a(n-2) +8707236*a(n-3) -167225067*a(n-4) +1392360966*a(n-5) -4194764289*a(n-6) for n>7
%e Some solutions for n=1
%e ..5..0..1..0. .5..0..0..3. .2..2..3..3. .5..0..0..0. .0..4..4..1
%Y Cf. A269767.
%K nonn
%O 1,1
%A _R. H. Hardin_, Mar 04 2016
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