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 | 3 |
| 3 | 4 |
| 4 | 9 |
| 5 | 10 |
| 6 | 12 |
| 7 | 13 |
| 8 | 16 |
| 9 | 20 |
| 10 | 37 |
| 11 | 57 |
| 12 | 66 |
| 13 | 106 |
| 14 | 116 |
| 15 | 127 |
| 16 | 355 |
| 17 | 396 |
| 18 | 547 |
| 19 | 2289 |
| 20 | 3777 |
| 21 | 4500 |
| 22 | 7821 |
| 23 | 15663 |
| 24 | 22746 |
| 25 | 25978 |
| 26 | 30434 |
| 27 | 39682 |
| 28 | 119716 |
| 29 | 133390 |
| 30 | 145093 |
| 31 | 200260 |