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 | 0 |
| 2 | 1 |
| 3 | 343 |
| 4 | 50653 |
| 5 | 10218313 |
| 6 | 2181825073 |
| 7 | 470366406433 |
| 8 | 101566487155393 |
| 9 | 21937185733709953 |
| 10 | 4738389801656378113 |
| 11 | 1023490673757369487873 |
| 12 | 221073930689208859487233 |