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 | 6 |
| 3 | 35 |
| 4 | 268 |
| 5 | 2092 |
| 6 | 17263 |
| 7 | 146565 |
| 8 | 1274244 |
| 9 | 11272025 |
| 10 | 101053126 |
| 11 | 915743823 |
| 12 | 8372470456 |
| 13 | 77114448042 |