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 | 2 |
| 2 | 3 |
| 3 | 4 |
| 4 | 5 |
| 5 | 11 |
| 6 | 17 |
| 7 | 32 |
| 8 | 53 |
| 9 | 103 |
| 10 | 107 |
| 11 | 109 |
| 12 | 113 |
| 13 | 137 |
| 14 | 197 |
| 15 | 233 |
| 16 | 811 |
| 17 | 7993 |
| 18 | 9281 |
| 19 | 14387 |
| 20 | 26573 |
| 21 | 51361 |