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 | 5 |
| 5 | 7 |
| 6 | 34 |
| 7 | 38 |
| 8 | 49 |
| 9 | 51 |
| 10 | 89 |
| 11 | 91 |
| 12 | 132 |
| 13 | 227 |
| 14 | 3662 |
| 15 | 5019 |
| 16 | 9729 |
| 17 | 25437 |
| 18 | 99944 |
| 19 | 106553 |
| 20 | 114577 |