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!)
A201642 Successive generations of the variant of the Kolakoski sequence. 0
1, 12, 1211, 121121, 121121221, 12112122122112, 1211212212211211221211, 121121221221121122121121221121121, 1211212212211211221211212211211212212211212212112, 12112122122112112212112122112112122122112122121121122122112122122112112122 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
COMMENTS
Word lengths give A042942.
LINKS
Eric Weisstein's World of Mathematics, Kolakoski Sequence
FORMULA
Generate A006928 via 1 -> 12 -> 1211 -> 121121 -> 121121221 -> ....
CROSSREFS
Sequence in context: A180586 A178529 A360502 * A177090 A103269 A317955
KEYWORD
easy,nonn
AUTHOR
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 April 23 14:49 EDT 2024. Contains 371914 sequences. (Running on oeis4.)