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 | 1 |
| 2 | 6 |
| 3 | 36 |
| 4 | 412 |
| 5 | 4650 |
| 6 | 85358 |
| 7 | 1414678 |
| 8 | 32042312 |
| 9 | 710371744 |
| 10 | 20080400872 |
| 11 | 546562561108 |