|
%I #4 May 14 2018 08:49:19
%S 1,82,217,2186,16782,127607,1061345,8678318,70215574,577416272,
%T 4726737248,38660295862,316896797330,2595679202847,21259473458379,
%U 174175307343534,1426821139278556,11688308432092316,95752925469921338
%N Number of nX5 0..1 arrays with every element unequal to 0, 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero.
%C Column 5 of A304551.
%H R. H. Hardin, <a href="/A304548/b304548.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..0..1..0..1. .0..1..0..0..1. .0..1..1..0..1. .0..1..0..0..1
%e ..1..1..1..1..0. .1..1..1..0..0. .0..1..1..0..1. .0..1..0..0..1
%e ..0..0..1..0..0. .0..1..1..1..0. .1..0..1..1..0. .0..1..0..0..0
%e ..1..1..0..0..1. .1..0..1..0..1. .1..0..1..1..0. .0..0..1..1..1
%e ..0..1..1..0..1. .1..0..1..0..1. .1..0..1..1..0. .1..0..1..1..1
%Y Cf. A304551.
%K nonn
%O 1,2
%A _R. H. Hardin_, May 14 2018
| 