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 | 41 |
| 3 | 641 |
| 4 | 40961 |
| 5 | 163841 |
| 6 | 167772161 |
| 7 | 2748779069441 |
| 8 | 180143985094819841 |
| 9 | 188894659314785808547841 |
| 10 | 193428131138340667952988161 |
| 11 | 850705917302346158658436518579420528641 |