%I #4 May 18 2018 08:06:07
%S 0,209,3680,172574,6978743,292676592,12219307955,510976436144,
%T 21366609684109,893510784279365,37365335846465488,1562572262518146095,
%U 65344912903528854346,2732647907508684527299,114276155295332420501253
%N Number of nX6 0..1 arrays with every element unequal to 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
%C Column 6 of A304767.
%H R. H. Hardin, <a href="/A304765/b304765.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..1..0..1..0..0. .0..1..1..1..0..1. .0..1..0..1..1..0. .0..1..0..1..0..0
%e ..0..1..1..1..1..1. .0..1..0..0..0..0. .0..1..0..1..1..0. .0..1..0..0..1..1
%e ..0..1..1..0..1..0. .0..1..0..0..1..1. .0..1..0..0..1..0. .0..1..0..1..0..1
%e ..0..1..0..0..1..0. .0..1..0..0..1..1. .0..1..0..0..1..0. .0..1..1..1..0..0
%e ..0..1..0..1..0..1. .0..1..0..1..0..0. .0..1..1..1..1..0. .0..1..0..1..1..1
%Y Cf. A304767.
%K nonn
%O 1,2
%A _R. H. Hardin_, May 18 2018