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A229365 Number of n X n 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 antidiagonally.

%I A229365 #8 Jul 23 2025 05:40:48
%S A229365 3,38,1610,222990,104382552,162794962814,851668326534130,
%T A229365 14897378230939391994,872764112558460116016396,
%U A229365 171094770747292212524499798502,112292092887713869652391305250607824
%N A229365 Number of n X n 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 antidiagonally.
%C A229365 Diagonal of A229372
%H A229365 R. H. Hardin, <a href="/A229365/b229365.txt">Table of n, a(n) for n = 1..13</a>
%e A229365 Some solutions for n=3
%e A229365 ..1..2..2....2..2..2....1..0..0....0..2..0....0..1..2....0..1..0....0..1..0
%e A229365 ..1..0..0....0..0..1....2..1..2....0..1..0....1..0..1....0..2..1....0..1..0
%e A229365 ..1..2..1....1..0..2....1..2..1....2..2..0....1..0..0....2..0..1....0..2..2
%K A229365 nonn
%O A229365 1,1
%A A229365 _R. H. Hardin_ Sep 21 2013