%I #4 Dec 17 2017 15:11:08

%S 21,869,17558,430522,10781621,263456105,6468185511,158971670482,

%T 3904685293187,95910770509611,2355968928839235,57871858877263524,

%U 1421555387086655166,34918923658297830634,857744546464670516645

%N Number of nX6 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1, 2 or 4 neighboring 1s.

%C Column 6 of A296643.

%H R. H. Hardin, <a href="/A296641/b296641.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

%Y Cf. A296643.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 17 2017