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 | 67 |
| 2 | 109 |
| 3 | 3529 |
| 4 | 10009 |
| 5 | 65899 |
| 6 | 151412689 |
| 7 | 1267389649 |
| 8 | 341094033905689 |
| 9 | 9807130727058790189 |
| 10 | 36453104912477522894689 |
| 11 | 1008407509171875041482378189 |
| 12 | 43350768819741354903275421016919057203189 |
| 13 | 29366774490668885282893783501883117566129541193767295703189 |