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 | 2351 |
| 3 | 4513 |
| 4 | 10610063 |
| 5 | 13264529 |
| 6 | 31184907679 |
| 7 | 59862819377 |
| 8 | 140737488355327 |