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 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 6 |
| 6 | 7 |
| 7 | 11 |
| 8 | 12 |
| 9 | 21 |
| 10 | 22 |
| 11 | 23 |
| 12 | 24 |
| 13 | 31 |
| 14 | 41 |
| 15 | 43 |
| 16 | 62 |
| 17 | 145 |
| 18 | 146 |
| 19 | 149 |
| 20 | 152 |
| 21 | 2626 |
| 22 | 2627 |
| 23 | 4370 |
| 24 | 8463 |
| 25 | 8466 |
| 26 | 13562 |
| 27 | 20841 |
| 28 | 42320 |
| 29 | 43171 |
| 30 | 46609 |
| 31 | 47749 |
| 32 | 48150 |
| 33 | 52723 |
| 34 | 55179 |
| 35 | 55180 |
| 36 | 55181 |