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 | 0 |
| 4 | 2 |
| 5 | 1 |
| 6 | 5 |
| 7 | 5 |
| 8 | 14 |
| 9 | 19 |
| 10 | 42 |
| 11 | 66 |
| 12 | 131 |
| 13 | 221 |
| 14 | 417 |
| 15 | 728 |
| 16 | 1341 |
| 17 | 2380 |
| 18 | 4334 |
| 19 | 7753 |
| 20 | 14041 |
| 21 | 25213 |
| 22 | 45542 |
| 23 | 81927 |
| 24 | 147798 |
| 25 | 266110 |
| 26 | 479779 |
| 27 | 864201 |
| 28 | 1557649 |
| 29 | 2806272 |
| 30 | 5057369 |
| 31 | 9112264 |
| 32 | 16420730 |
| 33 | 29587889 |
| 34 | 53317085 |
| 35 | 96072133 |
| 36 | 173118414 |
| 37 | 311945595 |
| 38 | 562110290 |