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 | 4 |
| 4 | 6 |
| 5 | 11 |
| 6 | 22 |
| 7 | 41 |
| 8 | 72 |
| 9 | 142 |
| 10 | 260 |
| 11 | 454 |
| 12 | 769 |
| 13 | 1416 |
| 14 | 2472 |
| 15 | 4465 |
| 16 | 7708 |
| 17 | 13314 |
| 18 | 23630 |
| 19 | 40406 |
| 20 | 68196 |
| 21 | 119646 |
| 22 | 203237 |
| 23 | 343242 |
| 24 | 586508 |
| 25 | 993764 |
| 26 | 1677187 |
| 27 | 2824072 |
| 28 | 4753066 |
| 29 | 7934268 |
| 30 | 13355658 |
| 31 | 22229194 |
| 32 | 36945828 |
| 33 | 61555136 |
| 34 | 102019156 |
| 35 | 168474033 |
| 36 | 279181966 |