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) |
|---|---|
| 1 | 0 |
| 2 | 2 |
| 3 | 1 |
| 4 | 1 |
| 5 | 3 |
| 6 | 4 |
| 7 | 5 |
| 8 | 9 |
| 9 | 15 |
| 10 | 25 |
| 11 | 37 |
| 12 | 66 |
| 13 | 107 |
| 14 | 171 |
| 15 | 293 |
| 16 | 490 |
| 17 | 810 |
| 18 | 1362 |
| 19 | 2302 |
| 20 | 3889 |
| 21 | 6552 |
| 22 | 11149 |
| 23 | 18950 |
| 24 | 32255 |
| 25 | 55053 |
| 26 | 94096 |
| 27 | 161036 |
| 28 | 275896 |
| 29 | 473709 |
| 30 | 813669 |
| 31 | 1399593 |
| 32 | 2409905 |
| 33 | 4154437 |
| 34 | 7166774 |
| 35 | 12375776 |
| 36 | 21389092 |
| 37 | 36994679 |
| 38 | 64034719 |
| 39 | 110918422 |
| 40 | 192257157 |
| 41 | 333449674 |
| 42 | 578697626 |