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 | 225 |
| 3 | 4088 |
| 4 | 73352 |
| 5 | 2263784 |
| 6 | 59707529 |
| 7 | 1504842706 |
| 8 | 39769163381 |
| 9 | 1043883771677 |
| 10 | 27215281320793 |
| 11 | 712187211744833 |
| 12 | 18637857993221677 |
| 13 | 487388094274625336 |
| 14 | 12748605716033435676 |
| 15 | 333484777432792798647 |
| 16 | 8722865447789945824645 |