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 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 8 |
| 7 | 9 |
| 8 | 45 |
| 9 | 136 |
| 10 | 142 |
| 11 | 158 |
| 12 | 243 |
| 13 | 923 |
| 14 | 1235 |
| 15 | 2196 |
| 16 | 4650 |
| 17 | 6119 |
| 18 | 7324 |
| 19 | 9543 |
| 20 | 13494 |
| 21 | 20310 |
| 22 | 20360 |
| 23 | 232920 |
| 24 | 830865 |
| 25 | 902708 |
| 26 | 1454508 |