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 | 29 |
| 2 | 17393796001 |
| 3 | 481682208844384447843365760878364816732549453120338354329505085763436029 |