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!)
A039033 Numbers whose base-7 representation has the same number of 0's and 4's. 1

%I #14 Jun 20 2021 15:03:13

%S 1,2,3,5,6,8,9,10,12,13,15,16,17,19,20,22,23,24,26,27,28,36,37,38,40,

%T 41,43,44,45,47,48,53,57,58,59,61,62,64,65,66,68,69,71,72,73,75,76,77,

%U 85,86,87,89,90,92,93,94,96,97,102,106,107,108,110,111,113,114,115

%N Numbers whose base-7 representation has the same number of 0's and 4's.

%H Daniel Starodubtsev, <a href="/A039033/b039033.txt">Table of n, a(n) for n = 1..10000</a>

%t Select[Range[200],DigitCount[#,7,0]==DigitCount[#,7,4]&] (* _Harvey P. Dale_, Jul 31 2014 *)

%Y Cf. A007093.

%K nonn,base,easy

%O 1,2

%A _Olivier GĂ©rard_

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 31 07:33 EDT 2024. Contains 374774 sequences. (Running on oeis4.)