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 | 144 |
| 3 | 6084 |
| 4 | 33856 |
| 5 | 37636 |
| 6 | 6310144 |
| 7 | 10150596 |
| 8 | 14668900 |
| 9 | 20007729 |
| 10 | 3292234884 |
| 11 | 39600602001 |
| 12 | 92437853419755481 |
| 13 | 2849708967414258609 |