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A219084 Hilltop maps: number of 7Xn binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, diagonal or antidiagonal neighbor in a random 0..1 7Xn array 1

%I #4 Nov 11 2012 14:27:34

%S 1,7361,1019123,99118753,11660290321,1410242020653,167024618548071,

%T 19746897662050241,2339794277074504521,277259160805907947953,

%U 32846897167510082525531,3891392293661362699294561

%N Hilltop maps: number of 7Xn binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, diagonal or antidiagonal neighbor in a random 0..1 7Xn array

%C Row 7 of A219078

%H R. H. Hardin, <a href="/A219084/b219084.txt">Table of n, a(n) for n = 1..19</a>

%e Some solutions for n=3

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

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

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

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

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Nov 11 2012

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Last modified April 25 16:45 EDT 2024. Contains 371989 sequences. (Running on oeis4.)