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 | 5 |
| 6 | 8 |
| 7 | 13 |
| 8 | 39 |
| 9 | 124 |
| 10 | 514 |
| 11 | 836 |
| 12 | 1053 |
| 13 | 4139 |
| 14 | 12815 |
| 15 | 61135 |
| 16 | 104937 |
| 17 | 792517 |
| 18 | 1454698 |
| 19 | 9679838 |
| 20 | 17354310 |
| 21 | 9735140 |
| 22 | 1760750 |
| 23 | 986050 |
| 24 | 621360 |
| 25 | 113815 |
| 26 | 581437 |
| 27 | 1252496 |
| 28 | 7676706 |
| 29 | 13019288 |
| 30 | 94367798 |
| 31 | 178067380 |
| 32 | 173537220 |
| 33 | 106496242 |
| 34 | 265429972 |
| 35 | 522619163 |