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) |
|---|---|
| 0 | 1 |
| 1 | 252 |
| 2 | 4144 |
| 3 | 187328 |
| 4 | 5143296 |
| 5 | 182336512 |
| 6 | 5664518144 |
| 7 | 185202884608 |
| 8 | 5854499373056 |
| 9 | 187705543360512 |
| 10 | 5987197055401984 |
| 11 | 191926028833128448 |
| 12 | 6145480467693961216 |
| 13 | 196854507263106220032 |
| 14 | 6299857999165520871424 |
| 15 | 201565743393381566906368 |
| 16 | 6448321065980862740299776 |