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%I #4 Feb 17 2016 07:24:12
%S 23,278,3331,37987,421450,4583103,49084071,519385102,5442503771,
%T 56571775611,584048456162,5994862809815,61225907059807,
%U 622579765715526,6306473266306611,63664757730483923,640753995659371194
%N Number of nX5 binary arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two not more than once.
%C Column 5 of A268995.
%H R. H. Hardin, <a href="/A268992/b268992.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 26*a(n-1) -241*a(n-2) +994*a(n-3) -2060*a(n-4) +2218*a(n-5) -1201*a(n-6) +290*a(n-7) -25*a(n-8) for n>9
%e Some solutions for n=4
%e ..0..1..0..0..1. .0..1..0..0..0. .0..1..0..1..1. .0..1..0..0..0
%e ..0..1..0..0..1. .0..0..0..0..1. .0..1..0..0..0. .0..0..1..0..0
%e ..1..0..1..0..0. .1..0..0..0..1. .0..0..1..0..0. .1..0..1..1..0
%e ..1..0..1..0..1. .0..1..0..0..0. .0..0..1..0..0. .0..0..0..0..1
%Y Cf. A268995.
%K nonn
%O 1,1
%A _R. H. Hardin_, Feb 17 2016
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