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 | 49 |
| 3 | 6623 |
| 4 | 741857 |
| 5 | 13247611 |
| 6 | 3060203141 |
| 7 | 13645449045719 |
| 8 | 218327192834879 |
| 9 | 100212182125865461 |
| 10 | 1904031462407822767 |
| 11 | 2534265876944902342877 |
| 12 | 58288115171766608401171 |
| 13 | 128058989033214718801833487 |