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) |
|---|---|
| 3 | 64 |
| 4 | 115 |
| 5 | 1217 |
| 6 | 1477206 |
| 7 | 96672 |
| 8 | 136644591 |
| 9 | 3640452 |
| 10 | 6347782194286 |
| 11 | 72339267 |
| 12 | 4159327027119583 |
| 13 | 5595833084 |
| 14 | 58866692131428799 |
| 15 | 216432682702 |