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 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 6 |
| 7 | 10 |
| 8 | 20 |
| 9 | 37 |
| 10 | 74 |
| 11 | 144 |
| 12 | 295 |
| 13 | 594 |
| 14 | 1229 |
| 15 | 2540 |
| 16 | 5324 |
| 17 | 11177 |
| 18 | 23684 |
| 19 | 50326 |
| 20 | 107593 |
| 21 | 230743 |
| 22 | 497008 |
| 23 | 1073667 |
| 24 | 2327213 |
| 25 | 5057433 |
| 26 | 11020414 |
| 27 | 24068945 |
| 28 | 52685541 |
| 29 | 115555511 |
| 30 | 253933732 |
| 31 | 558993308 |
| 32 | 1232569467 |
| 33 | 2721958234 |
| 34 | 6019784562 |
| 35 | 13331192017 |
| 36 | 29560633824 |