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 | 1 |
| 3 | 31 |
| 4 | 1147 |
| 5 | 41107 |
| 6 | 1480963 |
| 7 | 53308003 |
| 8 | 1919128099 |
| 9 | 69088371619 |
| 10 | 2487182817955 |
| 11 | 89538572808355 |
| 12 | 3223388672928931 |
| 13 | 116041991914472611 |
| 14 | 4177511710786827427 |
| 15 | 150390421577130906787 |
| 16 | 5414055176843881927843 |
| 17 | 194905986365976733701283 |