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 | 36 |
| 2 | 900 |
| 3 | 3600 |
| 4 | 22500 |
| 5 | 44100 |
| 6 | 176400 |
| 7 | 705600 |
| 8 | 1587600 |
| 9 | 4410000 |
| 10 | 5336100 |
| 11 | 21344400 |