login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A292104 Number of internal points that are the intersections of exactly two chords in the configuration A006561(n). 3
0, 0, 0, 1, 5, 12, 35, 40, 126, 140, 330, 228, 715, 644, 1365, 1168, 2380, 1512, 3876, 3360, 5985, 5280, 8855, 6144, 12650, 11284, 17550, 15680, 23751, 13800 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

COMMENTS

Needs a b-file.

LINKS

Table of n, a(n) for n=1..30.

CROSSREFS

Cf. A006561. Column k=2 of A292105.

Sequence in context: A301785 A066280 A192243 * A136113 A298992 A050189

Adjacent sequences:  A292101 A292102 A292103 * A292105 A292106 A292107

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Sep 14 2017

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 20 20:02 EDT 2018. Contains 316402 sequences. (Running on oeis4.)