%I #4 Jul 03 2018 09:10:20
%S 2,45,182,946,5256,26592,139705,743357,3895564,20551990,108462086,
%T 571420486,3013738375,15893704443,83803905400,441952817246,
%U 2330642013397,12290475240990,64814511670451,341801050087962,1802496248933719
%N Number of nX4 0..1 arrays with every element unequal to 1, 2, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero.
%C Column 4 of A316448.
%H R. H. Hardin, <a href="/A316444/b316444.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A316444/a316444.txt">Empirical recurrence of order 69</a>
%F Empirical recurrence of order 69 (see link above)
%e Some solutions for n=5
%e ..0..1..0..0. .0..0..0..1. .0..1..0..0. .0..1..1..0. .0..1..0..0
%e ..1..0..1..1. .0..1..0..1. .0..0..0..1. .1..1..1..1. .0..1..1..0
%e ..1..0..1..0. .1..0..1..1. .0..0..0..0. .1..1..1..1. .0..1..0..0
%e ..1..0..0..0. .1..1..0..1. .1..1..0..1. .0..0..1..0. .0..1..0..1
%e ..1..0..1..0. .0..1..1..0. .1..0..0..0. .1..0..1..1. .0..1..1..1
%Y Cf. A316448.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jul 03 2018