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 | 7 |
| 2 | 89 |
| 3 | 199 |
| 4 | 883 |
| 5 | 12401 |
| 6 | 463 |
| 7 | 36551 |
| 8 | 11593 |
| 9 | 183091 |
| 10 | 766261 |
| 11 | 3358169 |
| 12 | 241603 |
| 13 | 11739307 |
| 14 | 9177431 |
| 15 | 12270077 |
| 16 | 105639091 |
| 17 | 310523021 |
| 18 | 297779117 |
| 19 | 727334879 |
| 20 | 5344989829 |
| 21 | 1481666377 |
| 22 | 2572421893 |
| 23 | 1113443017 |
| 24 | 79263248027 |
| 25 | 84676452781 |