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) |
|---|---|
| 8 | 1 |
| 9 | 94 |
| 10 | 2620 |
| 11 | 45430 |
| 12 | 600655 |
| 13 | 6633484 |
| 14 | 64336844 |
| 15 | 565256120 |