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%I #6 Apr 05 2020 23:09:45
%S 0,2,12,56,236,950,3752,14684,57192,222308,863808,3357766,13061980,
%T 50859826,198235896,773453896,3020781528,11809145656,46207264696,
%U 180955506800,709219185000,2781727573396,10918267462160,42882371536718
%N Number of n X 2 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 2 of A285152.
%H R. H. Hardin, <a href="/A285146/b285146.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..0..0. .0..0. .0..1. .0..1. .0..1. .0..1. .1..0. .1..1. .1..1. .0..0
%e ..0..0. .1..0. .1..0. .0..0. .0..0. .0..1. .0..0. .0..0. .0..0. .1..0
%e ..0..1. .0..1. .0..0. .0..1. .1..1. .0..1. .1..0. .0..0. .1..0. .1..0
%e ..0..0. .1..0. .1..0. .1..0. .0..0. .0..0. .0..1. .1..0. .0..0. .1..0
%Y Cf. A285152.
%K nonn
%O 1,2
%A _R. H. Hardin_, Apr 12 2017
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