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 | 31 |
| 3 | 5685 |
| 4 | 90727 |
| 5 | 1456855 |
| 6 | 59707529 |
| 7 | 2301783905 |
| 8 | 66213677238 |
| 9 | 1944129099097 |
| 10 | 63049230136397 |
| 11 | 2027401928062934 |
| 12 | 63102413279467578 |
| 13 | 1970605911207789423 |
| 14 | 62210056801807436056 |
| 15 | 1961461031452058351683 |
| 16 | 61622985760713701597898 |