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 | 2 |
| 6 | 4 |
| 7 | 8 |
| 8 | 15 |
| 9 | 26 |
| 10 | 44 |
| 11 | 73 |
| 12 | 121 |
| 13 | 198 |
| 14 | 323 |
| 15 | 526 |
| 16 | 855 |
| 17 | 1387 |
| 18 | 2248 |
| 19 | 3641 |
| 20 | 5896 |
| 21 | 9544 |
| 22 | 15447 |
| 23 | 24999 |
| 24 | 40455 |
| 25 | 65463 |
| 26 | 105927 |
| 27 | 171399 |
| 28 | 277336 |
| 29 | 448745 |
| 30 | 726091 |
| 31 | 1174847 |
| 32 | 1900950 |
| 33 | 3075809 |
| 34 | 4976771 |
| 35 | 8052592 |
| 36 | 13029376 |
| 37 | 21081981 |
| 38 | 34111370 |
| 39 | 55193365 |
| 40 | 89304750 |