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 | 0 |
| 2 | 1 |
| 3 | 7 |
| 4 | 31 |
| 5 | 37 |
| 6 | 71 |
| 7 | 235 |
| 8 | 515 |
| 9 | 1199 |
| 10 | 1815 |
| 11 | 6587 |
| 12 | 30429 |
| 13 | 35589 |
| 14 | 42147 |
| 15 | 58571 |