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 | 441 |
| 3 | 28125 |
| 4 | 3553225 |
| 5 | 361199937 |
| 6 | 39085685401 |
| 7 | 4145792570105 |
| 8 | 441979857682489 |
| 9 | 47045498167288233 |
| 10 | 5009341586507664025 |
| 11 | 533335273492176377097 |
| 12 | 56783742831233576420089 |
| 13 | 6045707037507297581064681 |