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) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 3 |
| 5 | 3 |
| 6 | 8 |
| 7 | 9 |
| 8 | 20 |
| 9 | 26 |
| 10 | 50 |
| 11 | 69 |
| 12 | 125 |
| 13 | 177 |
| 14 | 301 |
| 15 | 440 |
| 16 | 717 |
| 17 | 1055 |
| 18 | 1675 |
| 19 | 2471 |
| 20 | 3835 |
| 21 | 5660 |
| 22 | 8627 |
| 23 | 12697 |
| 24 | 19095 |
| 25 | 27978 |
| 26 | 41581 |
| 27 | 60650 |
| 28 | 89244 |
| 29 | 129490 |
| 30 | 188925 |
| 31 | 272676 |
| 32 | 394809 |
| 33 | 566882 |
| 34 | 815191 |
| 35 | 1164510 |
| 36 | 1664295 |
| 37 | 2365698 |
| 38 | 3361844 |
| 39 | 4756030 |
| 40 | 6723280 |
| 41 | 9468138 |
| 42 | 13319299 |