A316646 - OEIS

%I #4 Jul 09 2018 11:27:41

%S 5,165,247,954,13869,43604,228056,1976020,9093873,51610410,361362973,

%T 1985497197,11760202787,75909662200,448886626784,2721480635319,

%U 17080156724712,103985805258335,638132195692524,3970731506103798

%N Number of nX6 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 6 of A316648.

%H R. H. Hardin, <a href="/A316646/b316646.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

%e ..0..1..0..0..0..0. .0..1..0..0..1..0. .0..1..1..0..1..0. .0..1..1..0..0..1

%e ..0..0..0..1..1..0. .0..0..0..0..0..1. .0..1..1..0..1..0. .0..0..0..0..1..0

%e ..0..0..0..0..0..0. .0..0..0..0..0..0. .1..1..1..1..1..1. .0..0..0..0..0..0

%e ..0..1..0..0..0..0. .0..1..0..0..1..0. .1..1..1..0..1..0. .0..1..1..0..0..0

%e ..1..0..0..0..1..0. .0..0..0..0..0..0. .1..0..1..1..1..1. .0..0..0..0..1..1

%Y Cf. A316648.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 09 2018