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A293101 Number of 2 X n 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1.

%I A293101 #6 Apr 05 2020 23:48:59
%S A293101 0,0,9,42,150,596,2220,8376,31959,121768,465365,1784742,6865278,
%T A293101 26474028,102325886,396332796,1538015240,5978805044,23278677150,
%U A293101 90767915948,354389747119,1385333740384,5421345875519,21237273165782,83270840712919
%N A293101 Number of 2 X n 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1.
%C A293101 Row 2 of A293100.
%H A293101 R. H. Hardin, <a href="/A293101/b293101.txt">Table of n, a(n) for n = 1..210</a>
%e A293101 Some solutions for n=4
%e A293101 ..0..1..0..0. .0..1..1..0. .0..0..1..0. .0..0..1..1. .1..1..1..0
%e A293101 ..0..0..0..1. .0..0..1..0. .0..0..1..0. .0..0..0..0. .0..0..0..0
%Y A293101 Cf. A293100.
%K A293101 nonn
%O A293101 1,3
%A A293101 _R. H. Hardin_, Sep 30 2017