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!)
A044423 Numbers n such that string 9,1 occurs in the base 10 representation of n but not of n-1. 0

%I

%S 91,191,291,391,491,591,691,791,891,910,991,1091,1191,1291,1391,1491,

%T 1591,1691,1791,1891,1910,1991,2091,2191,2291,2391,2491,2591,2691,

%U 2791,2891,2910,2991,3091,3191,3291,3391,3491,3591

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

%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 May 17 17:06 EDT 2022. Contains 353747 sequences. (Running on oeis4.)