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) |
|---|---|
| 0 | 1 |
| 1 | 65 |
| 2 | 946 |
| 3 | 13219 |
| 4 | 198773 |
| 5 | 3289726 |
| 6 | 60042295 |
| 7 | 1203809111 |
| 8 | 26367604594 |
| 9 | 627370195033 |
| 10 | 16127774194871 |
| 11 | 445733080387750 |
| 12 | 13185075339881521 |
| 13 | 415765494276887249 |
| 14 | 13925084982848794378 |
| 15 | 493754789222478044011 |
| 16 | 18480155500259244528605 |
| 17 | 728143711886491334229526 |