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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A248805 The difference A156257(n)-A074292(n). 2
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -1, 0, 0, 0, 0, 0, 0, 0, 1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Related to the position and frequency of runs of length 2 in the Kolakoski sequence A000002.

Possible values are -1, 0, 1, and a 1 seems to be always followed soon by a -1, indicating that the two sequences A074292 and A156257 are not equal but rather close (this might help to show the equality of the proportions of 1 and 2 in the Kolakoski sequence).

LINKS

Jean-Christophe Hervé, Table of n, a(n) for n = 1..5000

MAPLE

A248805 := proc(n)

    A156257(n)-A074292(n) ;

end proc:

seq(A248805(n), n=1..80) ; # R. J. Mathar, Nov 15 2014

CROSSREFS

Cf. A000002, A074292, A156257.

Sequence in context: A000004 A297046 * A307721 A023976 A025469 A025466

Adjacent sequences:  A248802 A248803 A248804 * A248806 A248807 A248808

KEYWORD

sign

AUTHOR

Jean-Christophe Hervé, Oct 11 2014

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 September 20 19:05 EDT 2019. Contains 327246 sequences. (Running on oeis4.)