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 | 6 |
| 3 | 9 |
| 4 | 18 |
| 5 | 42 |
| 6 | 132 |
| 7 | 139 |
| 8 | 482 |
| 9 | 523 |
| 10 | 524 |
| 11 | 859 |
| 12 | 909 |
| 13 | 948 |
| 14 | 979 |
| 15 | 1158 |
| 16 | 1741 |
| 17 | 2364 |
| 18 | 3519 |
| 19 | 4388 |
| 20 | 5952 |
| 21 | 6266 |
| 22 | 8564 |
| 23 | 12169 |
| 24 | 14448 |
| 25 | 54944 |
| 26 | 103526 |
| 27 | 116563 |
| 28 | 125918 |