%I #6 Apr 05 2020 23:11:02
%S 2,58,820,11574,166624,2446130,36367674,545774302,8250020936,
%T 125432428398,1916089561276,29385041758324,452142438975318,
%U 6976767708453156,107918789132352190,1672896226875572812
%N Number of n X 4 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.
%C Column 4 of A285152.
%H R. H. Hardin, <a href="/A285148/b285148.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..0..1..0..1. .0..1..0..0. .1..1..1..1. .1..0..0..0. .1..1..1..0
%e ..0..0..1..1. .0..0..0..1. .0..0..1..0. .0..1..0..1. .0..0..1..0
%e ..0..1..0..0. .1..1..1..1. .0..0..0..1. .0..1..1..0. .0..0..1..1
%e ..1..0..0..1. .0..0..0..1. .0..1..0..1. .0..1..1..0. .0..1..1..0
%Y Cf. A285152.
%K nonn
%O 1,1
%A _R. H. Hardin_, Apr 12 2017