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 | 1 |
| 2 | 3 |
| 3 | 12 |
| 4 | 49 |
| 5 | 108 |
| 6 | 243 |
| 7 | 624 |
| 8 | 1681 |
| 9 | 5616 |
| 10 | 47628 |
| 11 | 49300 |
| 12 | 27361200 |
| 13 | 29949750 |
| 14 | 920048500 |
| 15 | 1054364310 |
| 16 | 1278524208 |
| 17 | 9992125972 |