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 | 1 |
| 3 | 3 |
| 4 | 4 |
| 5 | 7 |
| 6 | 18 |
| 7 | 25 |
| 8 | 43 |
| 9 | 111 |
| 10 | 154 |
| 11 | 265 |
| 12 | 684 |
| 13 | 949 |
| 14 | 1633 |
| 15 | 4215 |
| 16 | 5848 |
| 17 | 10063 |
| 18 | 25974 |
| 19 | 36037 |
| 20 | 62011 |
| 21 | 160059 |
| 22 | 222070 |
| 23 | 382129 |
| 24 | 986328 |
| 25 | 1368457 |
| 26 | 2354785 |
| 27 | 6078027 |
| 28 | 8432812 |
| 29 | 14510839 |
| 30 | 37454490 |
| 31 | 51965329 |
| 32 | 89419819 |
| 33 | 230804967 |
| 34 | 320224786 |