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.

A358620 Number of nonzero digits needed to write all nonnegative n-digit integers.

Table of values

n a(n)
1 9
2 171
3 2520
4 33300
5 414000
6 4950000
7 57600000
8 657000000
9 7380000000
10 81900000000
11 900000000000
12 9810000000000
13 106200000000000
14 1143000000000000
15 12240000000000000
16 130500000000000000
17 1386000000000000000
18 14670000000000000000
19 154800000000000000000

List of values

[9, 171, 2520, 33300, 414000, 4950000, 57600000, 657000000, 7380000000, 81900000000, 900000000000, 9810000000000, 106200000000000, 1143000000000000, 12240000000000000, 130500000000000000, 1386000000000000000, 14670000000000000000, 154800000000000000000]

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

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