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) |
|---|---|
| 3 | 24200 |
| 4 | 7379216 |
| 5 | 41934482 |
| 6 | 4357599552 |
| 7 | 55820091938 |
| 8 | 3827188349968 |
| 9 | 69206906601800 |
| 10 | 3876306765700644 |
| 11 | 83804387156528018 |
| 12 | 4161957566985310208 |
| 13 | 100644292294423977842 |
| 14 | 4601436044608986037284 |
| 15 | 120511830300023778605000 |
| 16 | 5179981855242249681088528 |
| 17 | 144148769049390803580105218 |