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 | 4 |
| 7 | 6 |
| 8 | 10 |
| 9 | 16 |
| 10 | 25 |
| 11 | 42 |
| 12 | 73 |
| 13 | 125 |
| 14 | 217 |
| 15 | 391 |
| 16 | 714 |
| 17 | 1305 |
| 18 | 2428 |
| 19 | 4612 |
| 20 | 8830 |
| 21 | 17038 |
| 22 | 33377 |
| 23 | 66216 |
| 24 | 132349 |
| 25 | 267075 |
| 26 | 545329 |
| 27 | 1123693 |
| 28 | 2333278 |
| 29 | 4889751 |
| 30 | 10342468 |
| 31 | 22043954 |
| 32 | 47340802 |
| 33 | 102504532 |
| 34 | 223654713 |
| 35 | 491393646 |
| 36 | 1087353601 |
| 37 | 2423448817 |
| 38 | 5437568233 |