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 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 3 |
| 7 | 4 |
| 8 | 5 |
| 9 | 10 |
| 10 | 15 |
| 11 | 21 |
| 12 | 36 |
| 13 | 56 |
| 14 | 83 |
| 15 | 134 |
| 16 | 210 |
| 17 | 320 |
| 18 | 505 |
| 19 | 791 |
| 20 | 1221 |
| 21 | 1911 |
| 22 | 2988 |
| 23 | 4639 |
| 24 | 7240 |
| 25 | 11305 |
| 26 | 17595 |
| 27 | 27436 |
| 28 | 42806 |
| 29 | 66691 |
| 30 | 103968 |
| 31 | 162144 |
| 32 | 252720 |
| 33 | 393965 |
| 34 | 614285 |
| 35 | 957581 |
| 36 | 1492791 |
| 37 | 2327396 |
| 38 | 3628273 |
| 39 | 5656274 |
| 40 | 8818275 |
| 41 | 13747425 |
| 42 | 21431700 |
| 43 | 33411976 |
| 44 | 52088551 |
| 45 | 81204526 |
| 46 | 126596778 |
| 47 | 197361904 |
| 48 | 307682405 |