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 | 20 |
| 3 | 135 |
| 4 | 164 |
| 5 | 1107 |
| 6 | 15625 |
| 7 | 43692 |
| 8 | 128125 |
| 9 | 188228 |
| 10 | 294921 |
| 11 | 1270539 |
| 12 | 4117715 |
| 13 | 33765263 |
| 14 | 34134375 |
| 15 | 147053125 |
| 16 | 8995560189 |
| 17 | 19348535652 |
| 18 | 38753462951 |