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 | 339026688000000 |
| 2 | 377975808000000 |
| 3 | 424639621324800 |
| 4 | 483184764518400 |
| 5 | 453984583680000 |