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

 

Logo

Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing.
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A227389 Run lengths in A226390. 3
1, 2, 6, 4, 10, 6, 6, 6, 6, 6, 18, 8, 8, 8, 24, 10, 10, 10, 10, 10, 10, 10, 10, 10, 36, 12, 12, 12, 12, 12, 44, 14, 14, 14, 14, 14, 52, 16, 16, 16, 16, 16, 60, 18, 18, 18, 18, 18, 68, 20, 20, 20, 20, 20, 76, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Also first differences of A227388.

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..1000

PROG

(Haskell)

import Data.List (group)

a227389 n = a227389_list !! (n-1)

a227389_list = map length $ group a226390_list

CROSSREFS

Sequence in context: A201895 A192408 A074208 * A015906 A066043 A238642

Adjacent sequences:  A227386 A227387 A227388 * A227390 A227391 A227392

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Jul 10 2013

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 December 12 01:57 EST 2019. Contains 329948 sequences. (Running on oeis4.)