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!)
A044421 Numbers n such that string 8,9 occurs in the base 10 representation of n but not of n-1. 0

%I #6 Mar 30 2012 18:56:44

%S 89,189,289,389,489,589,689,789,889,989,1089,1189,1289,1389,1489,1589,

%T 1689,1789,1889,1989,2089,2189,2289,2389,2489,2589,2689,2789,2889,

%U 2989,3089,3189,3289,3389,3489,3589,3689,3789,3889

%N Numbers n such that string 8,9 occurs in the base 10 representation of n but not of n-1.

%H Tanya Khovanova, <a href="http://www.tanyakhovanova.com/RecursiveSequences/NonRecursions.html">Non Recursions</a>

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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 24 08:28 EDT 2024. Contains 371927 sequences. (Running on oeis4.)