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 | 13 |
| 3 | 118 |
| 4 | 898 |
| 5 | 6350 |
| 6 | 46329 |
| 7 | 382410 |
| 8 | 3645765 |
| 9 | 38163792 |
| 10 | 410943130 |
| 11 | 4368127170 |
| 12 | 45097983418 |
| 13 | 451960864264 |
| 14 | 4431128837948 |
| 15 | 42987600398290 |
| 16 | 417247179973351 |