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 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 6 |
| 6 | 11 |
| 7 | 20 |
| 8 | 34 |
| 9 | 56 |
| 10 | 121 |
| 11 | 244 |
| 12 | 481 |
| 13 | 938 |
| 14 | 1832 |
| 15 | 3540 |
| 16 | 6757 |
| 17 | 12708 |
| 18 | 23410 |
| 19 | 42328 |
| 20 | 73764 |
| 21 | 122889 |
| 22 | 275122 |
| 23 | 408967 |
| 24 | 832560 |
| 25 | 1580364 |
| 26 | 2834653 |
| 27 | 5044480 |
| 28 | 8652446 |
| 29 | 13975133 |
| 30 | 29832886 |
| 31 | 58354102 |
| 32 | 112803422 |
| 33 | 215061934 |
| 34 | 401711254 |
| 35 | 737267883 |
| 36 | 1313954863 |
| 37 | 2259026414 |