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!)
A044092 Numbers n such that string 3,0 occurs in the base 5 representation of n but not of n-1. 0

%I #7 Jan 18 2015 09:42:22

%S 15,40,65,75,90,115,140,165,190,200,215,240,265,290,315,325,340,365,

%T 375,415,440,450,465,490,515,540,565,575,590,615,640,665,690,700,715,

%U 740,765,790,815,825,840,865,890,915,940,950,965

%N Numbers n such that string 3,0 occurs in the base 5 representation of n but not of n-1.

%t Flatten[Position[Partition[Table[If[MemberQ[Partition[ IntegerDigits[ n,5],2,1],{3,0}],1,0],{n,1000}],2,1],{0,1}]]+1 (* _Harvey P. Dale_, Jan 18 2015 *)

%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 July 18 06:54 EDT 2024. Contains 374377 sequences. (Running on oeis4.)