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 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 9 |
| 6 | 13 |
| 7 | 15 |
| 8 | 21 |
| 9 | 35 |
| 10 | 39 |
| 11 | 45 |
| 12 | 63 |
| 13 | 65 |
| 14 | 91 |
| 15 | 105 |
| 16 | 117 |
| 17 | 195 |
| 18 | 273 |
| 19 | 315 |
| 20 | 455 |
| 21 | 585 |
| 22 | 819 |
| 23 | 1365 |
| 24 | 4095 |