%I #4 Jun 29 2018 07:22:13
%S 21,127,168,1046,4583,17487,96175,534083,2689151,15357780,89959730,
%T 517714307,3063955854,18343096898,109721387508,660612374692,
%U 3991562407488,24145509389500,146334159352398,887846840631706
%N Number of nX7 0..1 arrays with every element unequal to 0, 1, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.
%C Column 7 of A316311.
%H R. H. Hardin, <a href="/A316310/b316310.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..0..0..0..0..0..1. .0..0..1..1..1..1..1. .0..1..1..1..1..0..1
%e ..1..0..0..0..0..1..1. .0..1..1..1..1..0..1. .1..1..1..0..1..0..0
%e ..1..1..0..0..0..0..0. .1..1..1..1..1..1..1. .1..1..1..1..1..1..1
%e ..0..0..0..0..1..1..0. .0..0..1..1..0..0..0. .1..1..0..0..1..1..0
%e ..0..1..1..0..1..0..0. .1..0..1..0..0..0..1. .1..1..1..0..1..0..0
%Y Cf. A316311.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jun 29 2018
|