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 | 3 |
| 5 | 3 |
| 6 | 9 |
| 7 | 10 |
| 8 | 25 |
| 9 | 34 |
| 10 | 72 |
| 11 | 106 |
| 12 | 215 |
| 13 | 330 |
| 14 | 635 |
| 15 | 1025 |
| 16 | 1899 |
| 17 | 3141 |
| 18 | 5713 |
| 19 | 9602 |
| 20 | 17213 |
| 21 | 29292 |
| 22 | 51982 |
| 23 | 89149 |
| 24 | 157249 |
| 25 | 271027 |
| 26 | 476037 |
| 27 | 823386 |
| 28 | 1442063 |
| 29 | 2500015 |
| 30 | 4370386 |
| 31 | 7588146 |
| 32 | 13248591 |
| 33 | 23026728 |
| 34 | 40169991 |
| 35 | 69865026 |
| 36 | 121811765 |
| 37 | 211954826 |
| 38 | 369412910 |