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) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 11 |
| 3 | 243 |
| 4 | 365537 |
| 5 | 19304303788473 |
| 6 | 1250033478133613116903743692225 |
| 7 | 7355069116914166372074595432733192295583026786908016407724348346449 |