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 | 57 |
| 2 | 239 |
| 3 | 1985 |
| 4 | 10133 |
| 5 | 9466 |
| 6 | 11389 |
| 7 | 27590 |
| 8 | 51412 |
| 9 | 153765 |
| 10 | 344464 |
| 11 | 107551 |
| 12 | 296344 |
| 13 | 172078 |
| 14 | 432436 |
| 15 | 931837 |
| 16 | 753090 |
| 17 | 676541 |
| 18 | 2321221 |
| 19 | 2027724 |
| 20 | 3394758 |
| 21 | 1706203 |
| 22 | 4841182 |
| 23 | 1438398 |
| 24 | 2947125 |
| 25 | 398366 |
| 26 | 5657795 |
| 27 | 4942017 |
| 28 | 9400802 |
| 29 | 11906503 |