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 | 10 |
| 2 | 210 |
| 3 | 6610 |
| 4 | 277410 |
| 5 | 14553010 |
| 6 | 916146210 |
| 7 | 67285818610 |
| 8 | 5647734061410 |
| 9 | 533307215001010 |
| 10 | 55954905981282210 |
| 11 | 6457903731351210610 |
| 12 | 813080459351919805410 |
| 13 | 110901542660769629769010 |
| 14 | 16290196917457939734258210 |