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 | 3 |
| 2 | 1462 |
| 3 | 44264 |
| 4 | 2486429 |
| 5 | 147984724 |
| 6 | 7577203142 |
| 7 | 396849643846 |
| 8 | 20924743041507 |
| 9 | 1094394105909728 |