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 | 2304 |
| 3 | 1612127 |
| 4 | 1064918960 |
| 5 | 698512774464 |
| 6 | 457753027631164 |
| 7 | 299940605530116319 |
| 8 | 196531575367664678400 |
| 9 | 128774089577828985307985 |
| 10 | 84377085408032081020147412 |
| 11 | 55286683084713553039968700608 |
| 12 | 36225680193828279388607070447232 |
| 13 | 23736274839549237072891352060244017 |