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 | 43 |
| 3 | 714 |
| 4 | 715 |
| 5 | 9763 |
| 6 | 122968 |
| 7 | 122969 |
| 8 | 1478366 |
| 9 | 17239955 |
| 10 | 196746419 |
| 11 | 2209316467 |
| 12 | 24499118645 |
| 13 | 268950072605 |