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 | 8 |
| 3 | 72 |
| 4 | 2255 |
| 5 | 166408 |
| 6 | 33489287 |
| 7 | 17373187209 |
| 8 | 23735905327584 |
| 9 | 84707858657965180 |
| 10 | 792123204706451722511 |
| 11 | 19386236394149894806708656 |
| 12 | 1242293991563772001787883943693 |
| 13 | 208405704482555536994509895576090977 |
| 14 | 91533085042008706066658193727853843719640 |