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) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 4 |
| 6 | 7 |
| 7 | 31 |
| 8 | 42 |
| 9 | 26 |
| 10 | 531 |
| 11 | 302 |
| 12 | 67 |
| 13 | 909 |
| 14 | 8721 |
| 15 | 4522 |
| 16 | 48811 |
| 17 | 72152 |
| 18 | 6487 |
| 19 | 908821 |
| 20 | 844702 |
| 21 | 6572211 |
| 22 | 9726782 |
| 23 | 29139201 |
| 24 | 58129562 |
| 25 | 86185456 |
| 26 | 139627251 |
| 27 | 949140792 |
| 28 | 656458225 |
| 29 | 9962261161 |
| 30 | 6171227123 |
| 31 | 20114953831 |
| 32 | 68392496992 |