%I #4 Dec 18 2017 11:11:46
%S 21,609,5938,110036,2358963,40937523,794602323,15702927104,
%T 301022037125,5861692033022,114392472761324,2223043668178607,
%U 43293446682040342,843359542317194735,16419266352344666950,319756804547254943701
%N Number of nX6 0..1 arrays with each 1 adjacent to 0, 2 or 3 king-move neighboring 1s.
%C Column 6 of A296674.
%H R. H. Hardin, <a href="/A296672/b296672.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..1..0..0..0..0..0. .1..1..0..0..0..0. .0..0..0..0..1..0. .0..0..1..1..0..0
%e ..0..0..0..1..1..0. .1..0..1..0..0..0. .0..0..0..1..1..1. .0..1..0..1..0..1
%e ..0..0..0..0..1..0. .0..1..0..0..0..1. .1..0..0..0..0..0. .1..0..0..1..0..0
%e ..1..0..1..0..0..0. .0..0..1..1..1..1. .1..1..0..0..0..0. .1..1..1..0..0..1
%Y Cf. A296674.
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 18 2017