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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A088661 A log based Cantor self similar sequence. 0
8, 8, 7, 6, 7, 8, 8, 7, 6, 8, 8, 7, 7, 8, 8, 7, 7, 8, 8, 5, 7, 8, 8, 7, 6, 8, 8, 7, 7, 8, 8, 7, 7, 8, 8, 6, 7, 8, 8, 7, 5, 8, 8, 7, 7, 8, 8, 7, 7, 8, 8, 6, 7, 8, 8, 7, 6, 8, 8, 7, 7, 8, 8, 7, 7, 8, 8, 6, 7, 8, 8, 7, 6, 8, 8, 7, 7, 8, 8, 7, 7, 8, 8, 4, 7, 8, 8, 7, 6, 8, 8, 7, 7, 8, 8, 7, 7, 8, 8, 6, 7, 8, 8, 7, 5 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

LINKS

Table of n, a(n) for n=3..107.

FORMULA

p[n_, k_]=Sum[Log[i], {i, 1, n}]/Sum[Log[i], {i, n-Floor[3*n/4^k], n-Floor[n/4^k]}] a(n) = Sum[Floor[p[n, k]/p[n-1, k]], {k, 1, 8}]

MATHEMATICA

p[n_, k_]=Sum[Log[i], {i, 1, n}]/Sum[Log[i], {i, n-Floor[3*n/4^k], n-Floor[n/4^k]}] digits=200 f[n_]=Sum[Floor[p[n, k]/p[n-1, k]], {k, 1, 8}] at=Table[f[n], {n, 3, digits}]

CROSSREFS

Cf. A088487 A self similar Sierpinski type chaotic sequence with rate three at eight levels. A088488 A self similar Cantor type sequence with eight levels.

Sequence in context: A154400 A215734 A202953 * A127196 A294795 A173623

Adjacent sequences:  A088658 A088659 A088660 * A088662 A088663 A088664

KEYWORD

nonn,uned

AUTHOR

Roger L. Bagula, Nov 21 2003

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 June 18 14:52 EDT 2019. Contains 324213 sequences. (Running on oeis4.)