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 | 1 |
| 3 | 11664 |
| 4 | 20736 |
| 5 | 2313441 |
| 6 | 2985984 |
| 7 | 9150625 |
| 8 | 28005264 |
| 9 | 236421376 |
| 10 | 655360000 |
| 11 | 1871773696 |
| 12 | 3340840000 |
| 13 | 4294967296 |
| 14 | 10435031104 |
| 15 | 10485760000 |
| 16 | 11716114081 |
| 17 | 33556377856 |
| 18 | 50054665441 |
| 19 | 80706559921 |
| 20 | 156531800881 |
| 21 | 203928109056 |
| 22 | 258439040161 |
| 23 | 282429536481 |
| 24 | 414998793616 |