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 | 15 |
| 7 | 21 |
| 8 | 25 |
| 9 | 35 |
| 10 | 45 |
| 11 | 49 |
| 12 | 63 |
| 13 | 75 |
| 14 | 105 |
| 15 | 147 |
| 16 | 175 |
| 17 | 225 |
| 18 | 245 |
| 19 | 315 |
| 20 | 441 |
| 21 | 525 |
| 22 | 735 |
| 23 | 1225 |
| 24 | 1575 |
| 25 | 2205 |
| 26 | 3675 |
| 27 | 11025 |