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 | 0 |
| 3 | 1 |
| 4 | 2 |
| 5 | 7 |
| 6 | 13 |
| 7 | 30 |
| 8 | 60 |
| 9 | 125 |
| 10 | 256 |
| 11 | 513 |
| 12 | 1049 |
| 13 | 2082 |
| 14 | 4214 |
| 15 | 8401 |
| 16 | 16771 |
| 17 | 33427 |
| 18 | 66550 |
| 19 | 132405 |
| 20 | 262865 |
| 21 | 522296 |
| 22 | 1036033 |
| 23 | 2055256 |
| 24 | 4075039 |
| 25 | 8078110 |
| 26 | 16008485 |
| 27 | 31720903 |
| 28 | 62847087 |
| 29 | 124501149 |
| 30 | 246638355 |
| 31 | 488559079 |
| 32 | 967785236 |
| 33 | 1917099175 |
| 34 | 3797688543 |