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 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 6 |
| 7 | 11 |
| 8 | 22 |
| 9 | 44 |
| 10 | 89 |
| 11 | 185 |
| 12 | 382 |
| 13 | 808 |
| 14 | 1702 |
| 15 | 3635 |
| 16 | 7779 |
| 17 | 16736 |
| 18 | 36229 |
| 19 | 78466 |
| 20 | 171238 |
| 21 | 373203 |
| 22 | 819186 |
| 23 | 1795611 |
| 24 | 3958662 |
| 25 | 8721086 |
| 26 | 19294525 |
| 27 | 42691298 |
| 28 | 94733886 |
| 29 | 210379132 |
| 30 | 468084856 |
| 31 | 1042703207 |
| 32 | 2325575076 |
| 33 | 5193931583 |
| 34 | 11609749877 |
| 35 | 25986720374 |
| 36 | 58203955771 |