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 | 2 |
| 3 | 3 |
| 4 | 9 |
| 5 | 16 |
| 6 | 33 |
| 7 | 40073 |
| 8 | 40078 |
| 9 | 40082 |
| 10 | 40083 |
| 11 | 40122 |
| 12 | 251721 |
| 13 | 251722 |
| 14 | 251734 |
| 15 | 251736 |
| 16 | 4124584 |
| 17 | 10553433 |
| 18 | 10553439 |
| 19 | 10553444 |
| 20 | 10553454 |
| 21 | 10553478 |
| 22 | 10553552 |
| 23 | 10553553 |
| 24 | 10553818 |
| 25 | 27067098 |
| 26 | 27067524 |
| 27 | 179992912 |
| 28 | 465769814 |
| 29 | 465769832 |
| 30 | 465769839 |