%I #4 Mar 04 2017 11:52:00
%S 16,176,1725,18320,191025,1994338,20834848,217606715,2272854285,
%T 23739463489,247953137446,2589813034709,27049997494049,
%U 282530955520181,2950970365624794,30822201728903629,321930755408267718
%N Number of nX4 0..1 arrays with no 1 equal to more than two of its horizontal, vertical and antidiagonal neighbors.
%C Column 4 of A283282.
%H R. H. Hardin, <a href="/A283278/b283278.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 8*a(n-1) +22*a(n-2) +46*a(n-3) -91*a(n-4) -37*a(n-5) -135*a(n-6) +1263*a(n-7) -1913*a(n-8) +3501*a(n-9) -10568*a(n-10) +23356*a(n-11) -42719*a(n-12) +63699*a(n-13) -67853*a(n-14) +43395*a(n-15) -21088*a(n-16) +15354*a(n-17) -8233*a(n-18) +1521*a(n-19)
%e Some solutions for n=4
%e ..1..0..0..1. .1..0..0..0. .0..0..1..0. .1..0..0..1. .0..1..0..0
%e ..1..0..0..1. .0..1..0..0. .0..0..1..1. .1..1..0..1. .1..0..1..0
%e ..0..0..0..0. .0..0..1..0. .0..0..0..1. .0..1..0..0. .0..0..0..0
%e ..1..1..1..1. .0..0..1..1. .1..0..0..1. .0..1..0..0. .0..1..0..0
%Y Cf. A283282.
%K nonn
%O 1,1
%A _R. H. Hardin_, Mar 04 2017
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