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 | 11 |
| 2 | 1124 |
| 3 | 60049 |
| 4 | 1058576 |
| 5 | 9865625 |
| 6 | 61466176 |
| 7 | 292475249 |
| 8 | 1173741824 |
| 9 | 4486784401 |
| 10 | 20000000000 |
| 11 | 125937424601 |
| 12 | 1061917364224 |
| 13 | 10137858491849 |
| 14 | 100289254654976 |
| 15 | 1000576650390625 |
| 16 | 10001099511627776 |
| 17 | 100002015993900449 |