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 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 5 |
| 6 | 7 |
| 7 | 11 |
| 8 | 16 |
| 9 | 25 |
| 10 | 39 |
| 11 | 63 |
| 12 | 103 |
| 13 | 172 |
| 14 | 290 |
| 15 | 490 |
| 16 | 844 |
| 17 | 1464 |
| 18 | 2564 |
| 19 | 4522 |
| 20 | 8022 |
| 21 | 14325 |
| 22 | 25686 |
| 23 | 46382 |
| 24 | 84115 |
| 25 | 153327 |
| 26 | 280423 |
| 27 | 514798 |
| 28 | 948374 |
| 29 | 1752639 |
| 30 | 3248574 |
| 31 | 6037968 |
| 32 | 11250482 |
| 33 | 21013808 |
| 34 | 39336188 |
| 35 | 73788697 |
| 36 | 138689231 |
| 37 | 261150360 |
| 38 | 492602752 |
| 39 | 930716294 |