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

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A223743 Number of nX1 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 2

%I #5 Mar 27 2013 03:22:56

%S 3,3,9,9,39,43,195,243,1209,1539,8007,10557,56277,75595,409431,558117,

%T 3061119,4218077,23357223,32466849,181185495,253624579,1424453499,

%U 2005655781,11325017397,16024596491,90896159565,129159081787

%N Number of nX1 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 1 of A223747

%H R. H. Hardin, <a href="/A223743/b223743.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=6

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

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

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

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

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

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 21 12:49 EDT 2024. Contains 374474 sequences. (Running on oeis4.)