A317123 - OEIS

%I #4 Jul 21 2018 17:32:45

%S 32,569,4561,46955,507378,5694906,64566869,734571604,8373046468,

%T 95512011523,1089830833984,12436698688960,141929215105534,

%U 1619742780936473,18485182531732426,210961212697095730

%N Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A317125.

%H R. H. Hardin, <a href="/A317123/b317123.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A317125.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 21 2018