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 | 1 |
| 2 | 65 |
| 3 | 922 |
| 4 | 19685 |
| 5 | 572036 |
| 6 | 16379797 |
| 7 | 542459296 |
| 8 | 20028938953 |
| 9 | 787480005520 |
| 10 | 33447797179721 |
| 11 | 1522102664036384 |
| 12 | 73362723948758125 |
| 13 | 3738119667151161280 |
| 14 | 200625910519541044189 |
| 15 | 11290451562860730241216 |
| 16 | 664399657108812332697233 |
| 17 | 40781390340823661046136064 |