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!)
A245844 Number of length n 0..n arrays with new values introduced in order from both ends, and least squares fitting to a straight line with slope zero, with a single point taken as having zero slope 1
1, 1, 2, 2, 5, 5, 15, 17, 78, 102, 569, 919, 6143, 11171, 86082, 175170, 1500089, 3364343, 31536051, 77010521, 782091916, 2060257730, 22485413587, 63440153687, 739249776945, 2220625119939, 27479009460738, 87449057712710 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Diagonal of A245851

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..41

EXAMPLE

Some solutions for n=10

..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0

..1....0....1....1....1....1....0....0....1....1....1....1....1....0....1....0

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

..0....1....0....0....1....2....2....2....0....3....1....2....0....1....3....1

..2....2....1....1....3....1....1....3....0....0....0....1....0....0....1....2

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

..2....1....2....2....2....0....0....0....0....3....1....2....1....1....3....1

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

..1....0....1....1....1....1....1....1....1....1....1....1....1....0....1....0

..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0

CROSSREFS

Sequence in context: A245848 A245849 A245850 * A083849 A326512 A325983

Adjacent sequences:  A245841 A245842 A245843 * A245845 A245846 A245847

KEYWORD

nonn

AUTHOR

R. H. Hardin, Aug 04 2014

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 February 27 15:59 EST 2020. Contains 332307 sequences. (Running on oeis4.)