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!)
A039409 Numbers n such that representation in base 10 has same nonzero number of 1's and 9's. 0
19, 91, 109, 129, 139, 149, 159, 169, 179, 189, 190, 192, 193, 194, 195, 196, 197, 198, 219, 291, 319, 391, 419, 491, 519, 591, 619, 691, 719, 791, 819, 891, 901, 910, 912, 913, 914, 915, 916, 917, 918, 921, 931, 941, 951, 961, 971, 981, 1009, 1029 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..50.

MATHEMATICA

Select[Range[1100], DigitCount[#, 10, 1]==DigitCount[#, 10, 9]>0&] (* Harvey P. Dale, Jan 08 2015 *)

CROSSREFS

Sequence in context: A096031 A302710 A157875 * A038653 A043232 A044012

Adjacent sequences:  A039406 A039407 A039408 * A039410 A039411 A039412

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 April 5 16:24 EDT 2020. Contains 333245 sequences. (Running on oeis4.)