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 | 38 |
| 2 | 652 |
| 3 | 9080 |
| 4 | 116656 |
| 5 | 1446368 |
| 6 | 17636032 |
| 7 | 213311360 |
| 8 | 2569812736 |
| 9 | 30898216448 |
| 10 | 371141389312 |
| 11 | 4455873443840 |
| 12 | 53483541999616 |
| 13 | 641880868118528 |
| 14 | 7703040602324992 |
| 15 | 92439308337643520 |
| 16 | 1109288626710839296 |