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 A189257 Number of n X n binary arrays without the pattern 0 0 1 diagonally, antidiagonally or horizontally 1

%I

%S 2,16,280,8900,552752,68635317,17747766886,9421503162646,

%T 10606582683139102,24593238398265693575,121227430181311808878846,

%U 1234571538047080619811567488,26705899629138438568650919545084

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

%C Diagonal of A189264

%H R. H. Hardin, <a href="/A189257/b189257.txt">Table of n, a(n) for n = 1..15</a>

%e Some solutions for 3X3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Apr 19 2011

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Last modified October 22 02:33 EDT 2018. Contains 316431 sequences. (Running on oeis4.)