A207558 - OEIS

%I #7 Dec 18 2015 18:18:01

%S 2,16,92,636,9568,138017,3275898,100565794,5427850334,274972547840,

%T 35540211201327,3458816367555240,1051654956960360726,

%U 183797069898348851705,149794018569432287405504

%N Number of n X n 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 1 1 and 1 1 0 vertically

%C Diagonal of A207564

%H R. H. Hardin, <a href="/A207558/b207558.txt">Table of n, a(n) for n = 1..16</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 18 2012