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 | 2 |
| 3 | 5 |
| 4 | 6 |
| 5 | 40 |
| 6 | 47 |
| 7 | 49 |
| 8 | 58 |
| 9 | 67 |
| 10 | 142 |
| 11 | 170 |
| 12 | 173 |
| 13 | 232 |
| 14 | 530 |
| 15 | 539 |
| 16 | 559 |
| 17 | 1651 |
| 18 | 1858 |
| 19 | 2695 |
| 20 | 6257 |
| 21 | 6714 |
| 22 | 8854 |
| 23 | 15066 |
| 24 | 15091 |
| 25 | 16890 |
| 26 | 51366 |
| 27 | 85249 |
| 28 | 135906 |