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 | 3 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 9 |
| 7 | 32 |
| 8 | 279 |
| 9 | 8896 |
| 10 | 2481705 |
| 11 | 22077238784 |
| 12 | 54789193873965015 |
| 13 | 1209594115938395614939902976 |
| 14 | 66272686526956073137307690185435702644419625 |