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.

A076068 Smallest number that can be formed by using the nonzero digits of the numbers 1+n(n-1)/2 through n(n+1)/2.

Table of values

n a(n)
1 1
2 23
3 456
4 1789
5 1111112345
6 11111226789
7 22222222345678
8 122333333334569
9 12333344444445789
10 1234444455555556789
11 123455555666666666789
12 12345666677777777777889
13 112345677888888888889999
14 111111122334455678999999999
15 111111111111111111111111112234566778899

List of values

[1, 23, 456, 1789, 1111112345, 11111226789, 22222222345678, 122333333334569, 12333344444445789, 1234444455555556789, 123455555666666666789, 12345666677777777777889, 112345677888888888889999, 111111122334455678999999999, 111111111111111111111111112234566778899]

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

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