cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A216399 Numbers k such that the number of times digit 'm' used for writing the decimal representation of the numbers from 1 to k is equal to k for more than one value of m in the range m = 1 to 9.

Table of values

n a(n)
1 0
2 35000000
3 500000000
4 535000000
5 9465000000
6 9500000000
7 9965000000
8 10000000000
9 10500000000
10 19465000000
11 19500000000
12 19965000000
13 20000000000
14 20500000000
15 29465000000
16 29500000000
17 29965000000

List of values

[0, 35000000, 500000000, 535000000, 9465000000, 9500000000, 9965000000, 10000000000, 10500000000, 19465000000, 19500000000, 19965000000, 20000000000, 20500000000, 29465000000, 29500000000, 29965000000]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.