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 | 8 |
| 3 | 84 |
| 4 | 936 |
| 5 | 10810 |
| 6 | 127632 |
| 7 | 1531180 |
| 8 | 18589840 |
| 9 | 227826873 |
| 10 | 2813450960 |
| 11 | 34963217388 |
| 12 | 436807761192 |
| 13 | 5482017092760 |
| 14 | 69070750692496 |
| 15 | 873243394317660 |
| 16 | 11073530439895728 |