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 | 0 |
| 4 | 1 |
| 5 | 1 |
| 6 | 2 |
| 7 | 6 |
| 8 | 8 |
| 9 | 14 |
| 10 | 43 |
| 11 | 57 |
| 12 | 100 |
| 13 | 308 |
| 14 | 408 |
| 15 | 716 |
| 16 | 2205 |
| 17 | 2921 |
| 18 | 5126 |
| 19 | 15786 |
| 20 | 20912 |
| 21 | 36698 |
| 22 | 113015 |
| 23 | 149713 |
| 24 | 262728 |
| 25 | 809096 |
| 26 | 1071824 |
| 27 | 1880920 |
| 28 | 5792473 |
| 29 | 7673393 |
| 30 | 13465866 |
| 31 | 41469422 |
| 32 | 54935288 |
| 33 | 96404710 |
| 34 | 296887523 |
| 35 | 393292233 |
| 36 | 690179756 |
| 37 | 2125474556 |
| 38 | 2815654312 |