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 | 5 |
| 2 | 7 |
| 3 | 9 |
| 4 | 11 |
| 5 | 13 |
| 6 | 15 |
| 7 | 19 |
| 8 | 25 |
| 9 | 35 |
| 10 | 79 |
| 11 | 81 |
| 12 | 105 |
| 13 | 171 |
| 14 | 243 |
| 15 | 271 |
| 16 | 295 |
| 17 | 355 |
| 18 | 523 |
| 19 | 591 |
| 20 | 1211 |
| 21 | 3073 |
| 22 | 11157 |
| 23 | 12887 |
| 24 | 19825 |