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 | 361 |
| 3 | 2666 |
| 4 | 21777 |
| 5 | 292781 |
| 6 | 3420704 |
| 7 | 42508145 |
| 8 | 524715109 |
| 9 | 6339899565 |
| 10 | 78476978749 |
| 11 | 958583337489 |
| 12 | 11758190038504 |
| 13 | 144419322238672 |
| 14 | 1768994677452799 |
| 15 | 21718288663168847 |
| 16 | 266355912494488737 |