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 | 4 |
| 6 | 6 |
| 7 | 11 |
| 8 | 20 |
| 9 | 33 |
| 10 | 62 |
| 11 | 135 |
| 12 | 317 |
| 13 | 692 |
| 14 | 1345 |
| 15 | 2651 |
| 16 | 5741 |
| 17 | 12576 |
| 18 | 25825 |
| 19 | 49270 |
| 20 | 90118 |
| 21 | 168115 |
| 22 | 340003 |
| 23 | 751400 |
| 24 | 1741713 |
| 25 | 4057301 |
| 26 | 9232683 |
| 27 | 20184851 |
| 28 | 42473752 |
| 29 | 87925348 |
| 30 | 183030469 |
| 31 | 382853596 |
| 32 | 790870128 |
| 33 | 1597901060 |
| 34 | 3189861839 |
| 35 | 6430641490 |