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 | 14 |
| 3 | 20 |
| 4 | 57 |
| 5 | 187 |
| 6 | 188 |
| 7 | 916 |
| 8 | 1603 |
| 9 | 93928 |
| 10 | 142891 |
| 11 | 432976 |
| 12 | 549815 |
| 13 | 692259 |
| 14 | 773887 |
| 15 | 872191 |
| 16 | 4297168 |
| 17 | 9478088 |
| 18 | 127162432 |
| 19 | 127991488 |
| 20 | 129015616 |
| 21 | 132527167 |