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) |
|---|---|
| 2 | 125 |
| 3 | 142 |
| 4 | 1005 |
| 5 | 118678 |
| 6 | 706862 |
| 7 | 18481615 |
| 8 | 122003411 |
| 9 | 30330043 |
| 10 | 5923078409 |
| 11 | 22110133333 |
| 12 | 120175787632 |
| 13 | 5971473681952 |