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!)
A290876 A290865(n) -(n-1). 2
0, 0, 1, 4, 11, 25, 50, 91, 153, 241, 360, 525, 736, 1014, 1365, 1792, 2304, 2937, 3684, 4585, 5632, 6831, 8217, 9835, 11659, 13723, 16060, 18673, 21576, 24858, 28441, 32460, 36875, 41718, 47046, 52841, 59069, 65928, 73402, 81482, 90136 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,4
COMMENTS
This is the number of regions in the configuration A290447(n) if we remove the baseline.
LINKS
CROSSREFS
Sequence in context: A110610 A051462 A006004 * A333643 A006522 A036837
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Aug 13 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)