login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A122530 Decreasing runs. The size of each run is given by the sequence itself. First run starts with "1", second with "2", third with "3", fourth with "4", etc. 0
1, 2, 1, 3, 4, 3, 2, 5, 4, 3, 2, 6, 5, 4, 7, 6, 8, 7, 6, 5, 4, 9, 8, 7, 6, 10, 9, 8, 11, 10, 12, 11, 10, 9, 8, 7, 13, 12, 11, 10, 9, 14, 13, 12, 11, 15, 14, 13, 12, 11, 10, 9, 16, 15, 14, 13, 12, 11, 17, 16, 15, 14, 13, 12, 11, 10, 18, 17, 16, 15, 14, 13, 12, 19, 18, 17, 16, 15, 14, 20 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Terms computed by Gilles Sadowski

LINKS

Table of n, a(n) for n=1..80.

EXAMPLE

S is the sequence and R is the size of each run:

S=1,2,1,3,4,3,2,5,4,3,2,6,5,4,7,6,8,7,6,5,4,9,8,7,6,10,9,8,11,10...

S=1,(2,1),(3),(4,3,2),(5,4,3,2),(6,5,4),(7,6),(8,7,6,5,4)...

R=1 2 1 3 4 3 2 5... = sequence S

CROSSREFS

Sequence in context: A301471 A237124 A233547 * A301453 A278340 A324749

Adjacent sequences:  A122527 A122528 A122529 * A122531 A122532 A122533

KEYWORD

base,easy,nonn

AUTHOR

Eric Angelini, Sep 17 2006

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 22 04:06 EDT 2021. Contains 345367 sequences. (Running on oeis4.)