%I #4 May 26 2018 18:15:04
%S 0,18,46,410,2397,13970,93426,586718,3677924,23496484,148684241,
%T 941163254,5971654744,37839850436,239798822661,1520098487556,
%U 9634266216810,61062460761584,387030710270010,2453048690073328
%N Number of nX4 0..1 arrays with every element unequal to 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.
%C Column 4 of A305175.
%H R. H. Hardin, <a href="/A305171/b305171.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A305171/a305171.txt">Empirical recurrence of order 66</a>
%F Empirical recurrence of order 66 (see link above)
%e Some solutions for n=5
%e ..0..1..0..1. .0..1..0..1. .0..1..0..1. .0..1..0..1. .0..1..0..1
%e ..1..0..0..1. .0..1..1..0. .0..1..1..0. .1..1..0..0. .1..1..1..0
%e ..0..0..0..1. .0..1..1..1. .0..0..0..1. .0..1..1..1. .0..1..0..0
%e ..1..0..0..0. .0..1..1..0. .1..1..0..0. .1..0..1..0. .1..0..1..0
%e ..0..1..0..1. .1..0..1..0. .0..0..0..1. .1..0..1..0. .1..0..0..1
%Y Cf. A305175.
%K nonn
%O 1,2
%A _R. H. Hardin_, May 26 2018
|