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A223589 Number of nX5 0..1 arrays with every row having the same least squares slope fit to a straight line, and every column the same least squares slope fit to a straight line, with a single point array taken as having zero slope 1

%I #4 Mar 22 2013 20:09:00

%S 32,34,192,212,1664,2008,30512,38758,812928,1167112,27692576,42393166,

%T 1067193696,1706037736,44476831136,73308442324,1959545679600,

%U 3304165455088,90046303158656,154554359473180,4277914931997120

%N Number of nX5 0..1 arrays with every row having the same least squares slope fit to a straight line, and every column the same least squares slope fit to a straight line, with a single point array taken as having zero slope

%C Column 5 of A223592

%H R. H. Hardin, <a href="/A223589/b223589.txt">Table of n, a(n) for n = 1..29</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 22 2013

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Last modified August 19 06:29 EDT 2024. Contains 375284 sequences. (Running on oeis4.)