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 | 11 |
| 2 | 203 |
| 3 | 3971 |
| 4 | 64771 |
| 5 | 1011875 |
| 6 | 16752659 |
| 7 | 267475203 |
| 8 | 4294709251 |
| 9 | 68715414027 |
| 10 | 1099495919619 |