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 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 6 |
| 7 | 8 |
| 8 | 12 |
| 9 | 16 |
| 10 | 25 |
| 11 | 35 |
| 12 | 53 |
| 13 | 77 |
| 14 | 117 |
| 15 | 173 |
| 16 | 265 |
| 17 | 396 |
| 18 | 605 |
| 19 | 919 |
| 20 | 1408 |
| 21 | 2147 |
| 22 | 3305 |
| 23 | 5070 |
| 24 | 7819 |
| 25 | 12049 |
| 26 | 18635 |
| 27 | 28811 |
| 28 | 44672 |
| 29 | 69264 |
| 30 | 107618 |
| 31 | 167292 |
| 32 | 260446 |
| 33 | 405686 |
| 34 | 632743 |
| 35 | 987441 |
| 36 | 1542555 |
| 37 | 2411208 |
| 38 | 3772247 |
| 39 | 5905002 |
| 40 | 9250436 |
| 41 | 14499234 |
| 42 | 22740910 |
| 43 | 35686092 |