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.

A077306 Smallest multiple of n formed by the concatenation of n successive numbers, or 0 if no such number exists.

Table of values

n a(n)
1 1
2 12
3 123
4 3456
5 12345
6 123456
7 3456789
8 56789101112
9 123456789
10 12345678910
11 910111213141516171819
12 123456789101112
13 45678910111213141516
14 7891011121314151617181920
15 123456789101112131415
16 567891011121314151617181920

List of values

[1, 12, 123, 3456, 12345, 123456, 3456789, 56789101112, 123456789, 12345678910, 910111213141516171819, 123456789101112, 45678910111213141516, 7891011121314151617181920, 123456789101112131415, 567891011121314151617181920]

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

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