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 | 432046225 |
| 2 | 631071001 |
| 3 | 4579461601 |
| 4 | 8494657921 |
| 5 | 53282340865 |
| 6 | 80601412609 |