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 | 20 |
| 2 | 400 |
| 3 | 5362 |
| 4 | 71852 |
| 5 | 815677 |
| 6 | 9260610 |
| 7 | 94305342 |
| 8 | 958605819 |
| 9 | 8866424380 |
| 10 | 81766238574 |
| 11 | 692390232505 |