%I #4 Jul 09 2018 11:26:03
%S 2,10,33,42,277,954,2432,10541,39013,126666,482131,1792255,6319249,
%T 23345602,86360870,313149450,1150902364,4244463411,15539179620,
%U 57111294927,210353855214,772739674178,2841929193001,10462902967671
%N Number of nX4 0..1 arrays with every element unequal to 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
%C Column 4 of A316648.
%H R. H. Hardin, <a href="/A316644/b316644.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A316644/a316644.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..1..1. .0..1..0..0. .0..0..0..0. .0..1..1..1. .0..0..1..1
%e ..1..0..1..0. .1..0..0..1. .1..0..0..1. .0..0..0..1. .1..0..0..0
%e ..1..1..1..1. .0..0..0..0. .0..0..0..0. .0..1..1..1. .0..0..0..0
%e ..1..0..1..0. .1..0..0..1. .1..0..0..1. .1..0..1..0. .1..0..0..1
%e ..1..0..1..0. .0..0..0..0. .1..0..0..0. .1..1..1..1. .0..0..1..0
%Y Cf. A316648.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jul 09 2018