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 | 80 |
| 2 | 1184 |
| 3 | 6464 |
| 4 | 29312 |
| 5 | 78975 |
| 6 | 510464 |
| 7 | 557192 |
| 8 | 137431875584 |
| 9 | 549741658112 |
| 10 | 8796036399104 |
| 11 | 35184258842624 |
| 12 | 2251798907715584 |