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 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 1 |
| 6 | 2 |
| 7 | 4 |
| 8 | 7 |
| 9 | 11 |
| 10 | 18 |
| 11 | 29 |
| 12 | 48 |
| 13 | 77 |
| 14 | 125 |
| 15 | 203 |
| 16 | 329 |
| 17 | 532 |
| 18 | 861 |
| 19 | 1393 |
| 20 | 2255 |
| 21 | 3648 |
| 22 | 5903 |
| 23 | 9552 |
| 24 | 15456 |
| 25 | 25008 |
| 26 | 40464 |
| 27 | 65472 |
| 28 | 105937 |
| 29 | 171409 |
| 30 | 277346 |
| 31 | 448756 |
| 32 | 726103 |
| 33 | 1174859 |
| 34 | 1900962 |
| 35 | 3075821 |
| 36 | 4976784 |
| 37 | 8052605 |
| 38 | 13029389 |
| 39 | 21081995 |
| 40 | 34111385 |
| 41 | 55193380 |