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 | 2 |
| 2 | 6 |
| 3 | 10 |
| 4 | 12 |
| 5 | 46 |
| 6 | 126 |
| 7 | 148 |
| 8 | 180 |
| 9 | 618 |
| 10 | 928 |
| 11 | 3406 |
| 12 | 10948 |
| 13 | 13240 |
| 14 | 13872 |
| 15 | 16518 |
| 16 | 201358 |
| 17 | 396412 |
| 18 | 1888278 |
| 19 | 3300592 |