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 | 1 |
| 2 | 12 |
| 3 | 73 |
| 4 | 304 |
| 5 | 985 |
| 6 | 2668 |
| 7 | 6321 |
| 8 | 13504 |
| 9 | 26577 |
| 10 | 48940 |
| 11 | 85305 |
| 12 | 142000 |
| 13 | 227305 |
| 14 | 351820 |
| 15 | 528865 |
| 16 | 774912 |
| 17 | 1110049 |
| 18 | 1558476 |
| 19 | 2149033 |
| 20 | 2915760 |
| 21 | 3898489 |
| 22 | 5143468 |
| 23 | 6704017 |
| 24 | 8641216 |
| 25 | 11024625 |
| 26 | 13933036 |
| 27 | 17455257 |
| 28 | 21690928 |
| 29 | 26751369 |
| 30 | 32760460 |
| 31 | 39855553 |
| 32 | 48188416 |
| 33 | 57926209 |