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 | 2 |
| 4 | 6 |
| 5 | 8 |
| 6 | 22 |
| 7 | 32 |
| 8 | 66 |
| 9 | 118 |
| 10 | 204 |
| 11 | 366 |
| 12 | 644 |
| 13 | 1120 |
| 14 | 1902 |
| 15 | 3300 |
| 16 | 5676 |
| 17 | 9690 |
| 18 | 16620 |
| 19 | 28152 |
| 20 | 47900 |
| 21 | 80856 |
| 22 | 136546 |
| 23 | 230754 |
| 24 | 387570 |
| 25 | 651932 |
| 26 | 1093174 |
| 27 | 1832286 |
| 28 | 3065822 |
| 29 | 5122932 |
| 30 | 8557788 |
| 31 | 14272702 |
| 32 | 23779968 |
| 33 | 39592890 |
| 34 | 65860910 |
| 35 | 109471248 |
| 36 | 181821502 |
| 37 | 301795112 |