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A208364 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 0 1 0 vertically.

%I A208364 #9 Jul 22 2025 21:17:22
%S A208364 2,16,114,1953,67396,4503765,570085195,146860432968,74897509230292,
%T A208364 75596512299763500,152131706172601320207,610735743447136550959464,
%U A208364 4881221988286284651358877549,77769812914565143635925340729415
%N A208364 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 0 1 0 vertically.
%C A208364 Diagonal of A208369
%H A208364 R. H. Hardin, <a href="/A208364/b208364.txt">Table of n, a(n) for n = 1..19</a>
%e A208364 Some solutions for n=4
%e A208364 ..1..0..1..0....1..0..1..0....0..1..0..1....0..1..0..0....0..1..1..0
%e A208364 ..0..1..0..0....1..1..1..1....1..1..1..0....0..1..1..0....0..1..0..0
%e A208364 ..1..1..1..0....1..1..1..1....1..1..1..0....0..1..1..0....0..1..1..0
%e A208364 ..1..1..1..0....1..1..1..1....1..0..1..0....0..1..1..0....0..1..1..0
%K A208364 nonn
%O A208364 1,1
%A A208364 _R. H. Hardin_ Feb 25 2012