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 | 3 |
| 2 | 5 |
| 3 | 7 |
| 4 | 9 |
| 5 | 15 |
| 6 | 17 |
| 7 | 25 |
| 8 | 41 |
| 9 | 63 |
| 10 | 79 |
| 11 | 91 |
| 12 | 103 |
| 13 | 299 |
| 14 | 341 |
| 15 | 431 |
| 16 | 445 |
| 17 | 465 |
| 18 | 519 |
| 19 | 1251 |
| 20 | 2469 |
| 21 | 2507 |
| 22 | 2549 |
| 23 | 6817 |
| 24 | 8519 |
| 25 | 18983 |
| 26 | 38715 |