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 | 0 |
| 1 | 0 |
| 2 | 2 |
| 3 | 3 |
| 4 | 8 |
| 5 | 12 |
| 6 | 24 |
| 7 | 35 |
| 8 | 60 |
| 9 | 87 |
| 10 | 136 |
| 11 | 192 |
| 12 | 287 |
| 13 | 396 |
| 14 | 567 |
| 15 | 773 |
| 16 | 1074 |
| 17 | 1439 |
| 18 | 1958 |
| 19 | 2587 |
| 20 | 3454 |
| 21 | 4514 |
| 22 | 5931 |
| 23 | 7666 |
| 24 | 9951 |
| 25 | 12736 |
| 26 | 16341 |
| 27 | 20743 |
| 28 | 26354 |
| 29 | 33184 |
| 30 | 41807 |
| 31 | 52262 |
| 32 | 65329 |
| 33 | 81144 |
| 34 | 100721 |
| 35 | 124344 |
| 36 | 153390 |
| 37 | 188303 |
| 38 | 230940 |
| 39 | 282063 |
| 40 | 344100 |
| 41 | 418242 |
| 42 | 507762 |