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Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.
1

%I #4 Feb 19 2018 15:31:36

%S 64,353,973,19006,265422,3956148,61726046,969500658,15429018063,

%T 239641131942,3771112393403,59744732324155,936716049747989,

%U 14732735528223605,232406573700251212,3655998903754396361

%N Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

%C Column 7 of A299806.

%H R. H. Hardin, <a href="/A299805/b299805.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A299806.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 19 2018