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) |
|---|---|
| 2 | 7148695169714208807 |
| 3 | 84392786545 |
| 4 | 42270067 |
| 5 | 1254341 |
| 6 | 514389187 |
| 7 | 16861093 |
| 8 | 1730653 |
| 9 | 1730681 |
| 10 | 4485343 |
| 11 | 790841 |
| 12 | 15692699 |
| 13 | 992077 |
| 14 | 2136283 |
| 15 | 1730681 |
| 16 | 24683107 |
| 17 | 9666029 |
| 18 | 9560713 |
| 19 | 33282853 |
| 20 | 9375479 |
| 21 | 14604599 |
| 22 | 1247173 |
| 23 | 19437853 |
| 24 | 34546507 |
| 25 | 790841 |
| 26 | 3781541 |
| 27 | 1715053 |
| 28 | 17710319 |
| 29 | 45501941 |