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 | 0 |
| 2 | 1 |
| 3 | 925 |
| 4 | 1426 |
| 5 | 6112 |
| 6 | 9801 |
| 7 | 140301 |
| 8 | 52244922262 |
| 9 | 1445531162626 |
| 10 | 5205252778462 |
| 11 | 63253297234426 |
| 12 | 9040940929621480310251 |