login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A039107 Numbers n such that representation in base 9 has same number of 5's and 7's. 0
0, 1, 2, 3, 4, 6, 8, 9, 10, 11, 12, 13, 15, 17, 18, 19, 20, 21, 22, 24, 26, 27, 28, 29, 30, 31, 33, 35, 36, 37, 38, 39, 40, 42, 44, 52, 54, 55, 56, 57, 58, 60, 62, 68, 72, 73, 74, 75, 76, 78, 80, 81, 82, 83, 84, 85, 87, 89, 90, 91, 92, 93, 94, 96, 98, 99, 100, 101, 102 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..69.

MATHEMATICA

Select[Range[0, 120], DigitCount[#, 9, 5]==DigitCount[#, 9, 7]&] (* Harvey P. Dale, Apr 07 2013 *)

CROSSREFS

Sequence in context: A039255 A039196 A039147 * A317544 A047420 A039075

Adjacent sequences:  A039104 A039105 A039106 * A039108 A039109 A039110

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gérard

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 May 7 08:09 EDT 2021. Contains 343636 sequences. (Running on oeis4.)