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 | 728 |
| 2 | 1013 |
| 3 | 2813 |
| 4 | 3309 |
| 5 | 4323 |
| 6 | 4899 |
| 7 | 12438 |
| 8 | 21259 |
| 9 | 23113 |
| 10 | 31394 |
| 11 | 35719 |
| 12 | 37812 |
| 13 | 38023 |
| 14 | 111894 |
| 15 | 143449 |
| 16 | 194053 |
| 17 | 418613 |
| 18 | 418614 |
| 19 | 487368 |
| 20 | 535309 |
| 21 | 2232593 |
| 22 | 2452644 |
| 23 | 2490669 |
| 24 | 9226854 |
| 25 | 17367998 |
| 26 | 19637644 |
| 27 | 20341453 |
| 28 | 28553671 |
| 29 | 33406839 |
| 30 | 174398434 |
| 31 | 468936719 |
| 32 | 1468970139 |
| 33 | 2136314464 |