login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A223074 T(n,k)=Number of nXk 0..2 arrays with no adjacent rows or columns having the same least squares slope fit to a straight line, with a single point array taken as having zero slope 3
3, 0, 0, 0, 62, 0, 0, 306, 306, 0, 0, 2888, 7074, 2888, 0, 0, 17968, 207216, 207216, 17968, 0, 0, 139616, 4047876, 27452008, 4047876, 139616, 0, 0, 928600, 97159620, 1828765016, 1828765016, 97159620, 928600, 0, 0, 6820956, 1928081520 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.3.......0..........0............0............0............0..............0

.0......62........306.........2888........17968.......139616.........928600

.0.....306.......7074.......207216......4047876.....97159620.....1928081520

.0....2888.....207216.....27452008...1828765016.170196118056.11838030123808

.0...17968....4047876...1828765016.346224860946

.0..139616...97159620.170196118056

.0..928600.1928081520

.0.6820956

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..49

EXAMPLE

Some solutions for n=3 k=4

..1..1..0..1....0..0..2..0....0..0..0..0....2..1..0..0....1..0..2..2

..2..2..0..1....1..0..1..2....0..2..1..1....0..1..2..2....2..1..1..2

..2..0..1..1....0..1..1..1....1..2..0..1....2..2..0..2....2..0..0..1

CROSSREFS

Sequence in context: A222896 A057387 A109898 * A192732 A092573 A307801

Adjacent sequences:  A223071 A223072 A223073 * A223075 A223076 A223077

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Mar 14 2013

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 9 19:47 EDT 2021. Contains 343746 sequences. (Running on oeis4.)