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 | 35 |
| 3 | 141 |
| 4 | 1713 |
| 5 | 28011 |
| 6 | 355 |
| 7 | 34567 |
| 8 | 4045 |
| 9 | 54849 |
| 10 | 64615 |
| 11 | 15265 |
| 12 | 95363 |
| 13 | 126841 |