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) |
|---|---|
| 2 | 23 |
| 3 | 113 |
| 4 | 1531 |
| 5 | 12239 |
| 6 | 111317 |
| 7 | 1111219 |
| 8 | 11119291 |
| 9 | 111111197 |
| 10 | 1111113173 |
| 11 | 11111133017 |
| 12 | 111111189919 |
| 13 | 1111111411337 |
| 14 | 11111111161177 |
| 15 | 111111111263311 |
| 16 | 1111111111149119 |
| 17 | 11111111111179913 |
| 18 | 111111111111118771 |
| 19 | 1111111111111751371 |
| 20 | 11111111111111111131 |
| 21 | 111111111111113129773 |
| 22 | 1111111111111111337111 |