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 | 1 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 3 |
| 8 | 5 |
| 9 | 10 |
| 10 | 16 |
| 11 | 38 |
| 12 | 66 |
| 13 | 143 |
| 14 | 268 |
| 15 | 564 |
| 16 | 1100 |
| 17 | 2282 |
| 18 | 4546 |
| 19 | 9382 |
| 20 | 18977 |
| 21 | 39112 |
| 22 | 79891 |
| 23 | 164917 |
| 24 | 339195 |
| 25 | 702041 |
| 26 | 1451628 |
| 27 | 3013442 |
| 28 | 6257561 |
| 29 | 13029327 |
| 30 | 27152492 |
| 31 | 56698062 |
| 32 | 118518363 |
| 33 | 248137778 |
| 34 | 520085704 |
| 35 | 1091520783 |
| 36 | 2293229235 |
| 37 | 4823466463 |