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.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 8 |
| 9 | 9 |
| 10 | 22 |
| 11 | 12221 |
| 12 | 13131 |
| 13 | 21212 |
| 14 | 31113 |
| 15 | 1111441111 |
| 16 | 1114114111 |
| 17 | 1141111411 |
| 18 | 1411111141 |
| 19 | 4111111114 |
| 20 | 11112421111 |
| 21 | 11121412111 |
| 22 | 11211411211 |
| 23 | 12111411121 |
| 24 | 21111411112 |
| 25 | 111122221111 |
| 26 | 111212212111 |
| 27 | 111221122111 |
| 28 | 112112211211 |
| 29 | 112121121211 |