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 | 120 |
| 2 | 28288 |
| 3 | 18151220 |
| 4 | 19328645044 |
| 5 | 23161560633508 |
| 6 | 26947618206791521 |
| 7 | 29201160476766771330 |
| 8 | 29243132244492451384902 |