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 | 0 |
| 2 | 1 |
| 3 | 3 |
| 4 | 5 |
| 5 | 7 |
| 6 | 9 |
| 7 | 21 |
| 8 | 23 |
| 9 | 27 |
| 10 | 57 |
| 11 | 75 |
| 12 | 103 |
| 13 | 169 |
| 14 | 219 |
| 15 | 245 |
| 16 | 461 |
| 17 | 695 |
| 18 | 1169 |
| 19 | 3597 |
| 20 | 3637 |
| 21 | 7495 |
| 22 | 27743 |
| 23 | 28799 |
| 24 | 32501 |