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 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 16 |
| 6 | 361 |
| 7 | 143641 |
| 8 | 20741472361 |
| 9 | 26888415586959536281 |
| 10 | 2002733778095476250641191709976062096 |
| 11 | 27923382501685315585533445603599269911720565853675615809277429923281 |