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 | 27 |
| 2 | 702 |
| 3 | 18252 |
| 4 | 474201 |
| 5 | 12320100 |
| 6 | 320085675 |
| 7 | 8316067500 |
| 8 | 216057716550 |
| 9 | 5613342710625 |
| 10 | 145838884522500 |
| 11 | 3789004401804375 |
| 12 | 98441196968058750 |
| 13 | 2557576669978687500 |
| 14 | 66447774146243953125 |
| 15 | 1726363373899181062500 |