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 | 9 |
| 2 | 243 |
| 3 | 289 |
| 4 | 9801 |
| 5 | 332929 |
| 6 | 11309769 |
| 7 | 384199201 |
| 8 | 13051463049 |
| 9 | 443365544449 |
| 10 | 15061377048201 |
| 11 | 511643454094369 |
| 12 | 17380816062160329 |
| 13 | 590436102659356801 |
| 14 | 20057446674355970889 |
| 15 | 681362750825443653409 |