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Number of n X 6 binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally.
1

%I #7 Jun 18 2022 15:53:37

%S 52,2704,140608,3833322,109264923,2719427244,63149685928,

%T 1435483321366,31396505039678,678724157124848,14470229604883676,

%U 305997066532246950,6438705507919059232,134891856265337289564,2819613055895413412294

%N Number of n X 6 binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally.

%C Column 6 of A189905.

%H R. H. Hardin, <a href="/A189902/b189902.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions for 4 X 6

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

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

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

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

%Y Cf. A189905.

%K nonn

%O 1,1

%A _R. H. Hardin_, May 01 2011