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 | 0 |
| 2 | 0 |
| 3 | 15 |
| 4 | 232 |
| 5 | 2725 |
| 6 | 30350 |
| 7 | 324133 |
| 8 | 3386986 |
| 9 | 34984325 |
| 10 | 358604948 |
| 11 | 3657365837 |
| 12 | 37164550469 |
| 13 | 376613845818 |
| 14 | 3808514755978 |