A188564 - OEIS

%I #9 Oct 03 2025 04:44:36

%S 44,1936,42712,1204078,33878337,924245906,25507294349,703601341153,

%T 19385833712450,534376376148754,14729728015524015,405999164002796680,

%U 11190832837280857035,308460516372631128792,8502292714849587051901

%N Number of nX6 binary arrays without the pattern 1 1 1 diagonally, vertically or horizontally.

%C Column 6 of A188567

%H R. H. Hardin, <a href="/A188564/b188564.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions for 3X6

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 04 2011