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 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 4 |
| 7 | 3 |
| 8 | 9 |
| 9 | 26 |
| 10 | 82 |
| 11 | 46 |
| 12 | 397 |
| 13 | 283 |
| 14 | 1675 |
| 15 | 9938 |
| 16 | 19503 |
| 17 | 10247 |
| 18 | 97978 |
| 19 | 70478 |
| 20 | 529383 |
| 21 | 3171795 |
| 22 | 7642285 |
| 23 | 3824927 |
| 24 | 48091810 |
| 25 | 116017829 |
| 26 | 448707198 |
| 27 | 1709474581 |
| 28 | 6445720883 |
| 29 | 3009267707 |
| 30 | 51831264296 |