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 | 6628 |
| 3 | 1396083 |
| 4 | 342328663 |
| 5 | 80053957248 |
| 6 | 19161971644783 |
| 7 | 4539946639286136 |
| 8 | 1079929763429897946 |
| 9 | 256503858825070983388 |