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 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 3 |
| 6 | 4 |
| 7 | 8 |
| 8 | 13 |
| 9 | 23 |
| 10 | 38 |
| 11 | 68 |
| 12 | 114 |
| 13 | 201 |
| 14 | 343 |
| 15 | 600 |
| 16 | 1037 |
| 17 | 1817 |
| 18 | 3157 |
| 19 | 5543 |
| 20 | 9692 |
| 21 | 17047 |
| 22 | 29952 |
| 23 | 52828 |
| 24 | 93157 |
| 25 | 164743 |
| 26 | 291459 |
| 27 | 516679 |
| 28 | 916626 |
| 29 | 1628684 |
| 30 | 2896261 |
| 31 | 5156925 |
| 32 | 9189769 |
| 33 | 16393652 |
| 34 | 29268223 |
| 35 | 52300907 |
| 36 | 93529331 |
| 37 | 167390342 |
| 38 | 299787639 |
| 39 | 537281476 |