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

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 60th year, we have over 367,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

 Other ways to Give
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A256597 a(n) is the total number of pentagrams in a variant of pentagram fractal after n iterations. 3
1, 11, 76, 436, 2441 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Inspired by A255870. But the scale factor is tan(Pi/10) instead of 1/phi.
See illustration in the links.
LINKS
Table of n, a(n) for n=1..5.
Kival Ngaokrajang, Illustration of initial terms
CROSSREFS
Cf. A255870, A256429, A256569, A256571, A256582, A256583.
Sequence in context: A122589 A302382 A034269 * A245561 A056914 A232032
Adjacent sequences: A256594 A256595 A256596 * A256598 A256599 A256600
KEYWORD
nonn,more
AUTHOR
Kival Ngaokrajang, Apr 04 2015
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 December 10 16:14 EST 2023. Contains 367713 sequences. (Running on oeis4.)