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Number of nX6 0..1 arrays with every element unequal to 0, 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
1

%I #4 Aug 04 2018 20:18:04

%S 1,272,5114,242908,11013057,508895558,23660712291,1103426578662,

%T 51504728212214,2405230028991235,112343236438058707,

%U 5247698593127586871,245134541408802560300,11451062337945565153912,534920604669153194413527

%N Number of nX6 0..1 arrays with every element unequal to 0, 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A317703.

%H R. H. Hardin, <a href="/A317701/b317701.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A317703.

%K nonn

%O 1,2

%A _R. H. Hardin_, Aug 04 2018