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 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 8 |
| 7 | 15 |
| 8 | 25 |
| 9 | 50 |
| 10 | 102 |
| 11 | 193 |
| 12 | 390 |
| 13 | 815 |
| 14 | 1645 |
| 15 | 3385 |
| 16 | 7141 |
| 17 | 14893 |
| 18 | 31196 |
| 19 | 66309 |
| 20 | 140752 |
| 21 | 299043 |
| 22 | 640367 |
| 23 | 1373929 |
| 24 | 2950006 |
| 25 | 6360976 |
| 26 | 13749865 |
| 27 | 29753891 |
| 28 | 64547097 |
| 29 | 140329453 |
| 30 | 305470485 |
| 31 | 666084272 |
| 32 | 1454920255 |
| 33 | 3181946080 |
| 34 | 6968134645 |
| 35 | 15280422274 |