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 | 4 |
| 3 | 5 |
| 4 | 7 |
| 5 | 9 |
| 6 | 10 |
| 7 | 18 |
| 8 | 19 |
| 9 | 34 |
| 10 | 52 |
| 11 | 71 |
| 12 | 180 |
| 13 | 238 |
| 14 | 331 |
| 15 | 370 |
| 16 | 576 |
| 17 | 925 |
| 18 | 994 |
| 19 | 1075 |
| 20 | 1841 |
| 21 | 2460 |
| 22 | 2857 |
| 23 | 6007 |
| 24 | 6193 |
| 25 | 10836 |
| 26 | 18732 |
| 27 | 58708 |
| 28 | 72861 |