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 | 12 |
| 2 | 721 |
| 3 | 8664 |
| 4 | 520561 |
| 5 | 6255396 |
| 6 | 375844321 |
| 7 | 4516387248 |
| 8 | 271359079201 |
| 9 | 3260825337660 |
| 10 | 195920879338801 |
| 11 | 2354311377403272 |
| 12 | 141454603523535121 |
| 13 | 1699809553659824724 |
| 14 | 102130027823113018561 |
| 15 | 1227260143431016047456 |
| 16 | 73737738633684075865921 |