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

 

Logo

Please make a donation to keep the OEIS running. We are now in our 56th year. In the past year we added 10000 new sequences and reached almost 9000 citations (which often say "discovered thanks to the OEIS").
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A039402 Numbers n such that representation in base 10 has same nonzero number of 1's and 2's. 0
12, 21, 102, 120, 123, 124, 125, 126, 127, 128, 129, 132, 142, 152, 162, 172, 182, 192, 201, 210, 213, 214, 215, 216, 217, 218, 219, 231, 241, 251, 261, 271, 281, 291, 312, 321, 412, 421, 512, 521, 612, 621, 712, 721, 812, 821, 912, 921, 1002, 1020 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

CROSSREFS

Sequence in context: A157157 A218043 A048344 * A043225 A111066 A201015

Adjacent sequences:  A039399 A039400 A039401 * A039403 A039404 A039405

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 November 24 04:08 EST 2020. Contains 338607 sequences. (Running on oeis4.)