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 | 0 |
| 3 | 19 |
| 4 | 214 |
| 5 | 2154 |
| 6 | 19974 |
| 7 | 179590 |
| 8 | 1610937 |
| 9 | 14515403 |
| 10 | 131560754 |
| 11 | 1199914216 |
| 12 | 11009605949 |
| 13 | 101581094033 |
| 14 | 942018562525 |