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 | 0 |
| 1 | 1 |
| 2 | 16 |
| 3 | 768 |
| 4 | 131072 |
| 5 | 83886080 |
| 6 | 206158430208 |
| 7 | 1970324836974592 |
| 8 | 73786976294838206464 |
| 9 | 10880332376531662572355584 |
| 10 | 6338253001141147007483516026880 |