The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A223744 Number of nX3 0..2 arrays with every row and column least squares fitting to a zero slope straight line, with a single point array taken as having zero slope 1

%I #7 Mar 27 2013 03:24:09

%S 9,9,81,81,1521,1849,38025,59049,1461681,2368521,64112049,111450249,

%T 3167100729,5714604025,167633743761,311494585689,9370449532161,

%U 17792173577929,545559866271729,1054096283988801,32828183598395025

%N Number of nX3 0..2 arrays with every row and column least squares fitting to a zero slope straight line, with a single point array taken as having zero slope

%C Column 3 of A223747

%H R. H. Hardin, <a href="/A223744/b223744.txt">Table of n, a(n) for n = 1..33</a>

%e Some solutions for n=6

%e ..1..2..1....2..2..2....1..2..1....1..2..1....1..1..1....2..1..2....0..2..0

%e ..0..2..0....2..1..2....1..0..1....1..0..1....1..1..1....0..2..0....2..2..2

%e ..1..1..1....0..0..0....2..0..2....1..1..1....1..2..1....0..0..0....0..2..0

%e ..1..1..1....0..2..0....0..0..0....1..1..1....1..0..1....0..0..0....0..2..0

%e ..0..2..0....2..2..2....0..0..0....1..0..1....1..0..1....0..2..0....2..2..2

%e ..1..2..1....2..1..2....2..2..2....1..2..1....1..2..1....2..1..2....0..2..0

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 27 2013

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified August 5 20:58 EDT 2024. Contains 374956 sequences. (Running on oeis4.)