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 | 1 |
| 5 | 2 |
| 6 | 3 |
| 7 | 5 |
| 8 | 7 |
| 9 | 14 |
| 10 | 26 |
| 11 | 49 |
| 12 | 107 |
| 13 | 215 |
| 14 | 502 |
| 15 | 1112 |
| 16 | 2619 |
| 17 | 6220 |
| 18 | 14807 |
| 19 | 36396 |
| 20 | 88397 |
| 21 | 219920 |
| 22 | 545196 |
| 23 | 1364669 |
| 24 | 3434436 |
| 25 | 8658463 |
| 26 | 21989434 |
| 27 | 55893852 |
| 28 | 142823174 |
| 29 | 365766327 |
| 30 | 939575265 |
| 31 | 2420885031 |
| 32 | 6250344302 |
| 33 | 16183450744 |
| 34 | 41981605437 |
| 35 | 109155492638 |