A316952 - OEIS

%I #4 Jul 17 2018 12:24:22

%S 8,5824,543155,65510494,7779344498,920789559090,109086632521219,

%T 12922662872545339,1530833075194371631,181344893179752397743,

%U 21482391318884779005263,2544836644947598957548664

%N Number of nX7 0..1 arrays with every element unequal to 1, 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

%C Column 7 of A316953.

%H R. H. Hardin, <a href="/A316952/b316952.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A316953.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 17 2018