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 | 2 |
| 2 | 4 |
| 3 | 6 |
| 4 | 8 |
| 5 | 22 |
| 6 | 51 |
| 7 | 118 |
| 8 | 313 |
| 9 | 796 |
| 10 | 2022 |
| 11 | 5460 |
| 12 | 14756 |
| 13 | 41508 |
| 14 | 116504 |
| 15 | 331022 |
| 16 | 944930 |
| 17 | 2716758 |
| 18 | 7851206 |