|
%I #4 May 11 2018 14:16:15
%S 64,752,1752,18855,127511,741942,4921043,36193582,250785575,
%T 1779945291,12929993002,94656684886,695667963845,5171776044984,
%U 38719889240747,291633802759322,2210618685640386,16857082428252540,129166332857398739
%N Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 4 or 5 king-move adjacent elements, with upper left element zero.
%C Column 7 of A304347.
%H R. H. Hardin, <a href="/A304346/b304346.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..0..1..0..1..0..0. .0..1..0..1..1..0..0. .0..1..0..0..1..1..0
%e ..1..0..0..0..0..0..0. .0..0..0..0..0..0..0. .0..0..0..0..0..0..0
%e ..0..0..0..0..0..0..0. .0..0..0..0..0..0..0. .1..0..0..0..0..0..0
%e ..0..0..0..0..0..0..1. .1..1..0..0..1..1..0. .0..0..0..0..0..0..0
%e ..1..1..0..1..0..0..1. .1..1..1..1..1..0..1. .0..1..0..0..0..0..0
%Y Cf. A304347.
%K nonn
%O 1,1
%A _R. H. Hardin_, May 11 2018
| 