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 | 44 |
| 2 | 1936 |
| 3 | 65656 |
| 4 | 2368612 |
| 5 | 84965120 |
| 6 | 3043939392 |
| 7 | 109002398784 |
| 8 | 3903192037184 |
| 9 | 139764515932928 |
| 10 | 5004636736643072 |
| 11 | 179204127483438080 |
| 12 | 6416872410001742848 |
| 13 | 229772891432953663488 |
| 14 | 8227619010998404489216 |
| 15 | 294611405650426832932864 |