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 | 1 |
| 2 | 148 |
| 3 | 1924 |
| 4 | 13807 |
| 5 | 49702 |
| 6 | 2458885 |
| 7 | 9470344 |
| 8 | 186557266 |
| 9 | 523551502 |
| 10 | 191278379839 |
| 11 | 4368196101671 |