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 | 1 |
| 1 | 1 |
| 2 | 4 |
| 3 | 9 |
| 4 | 22 |
| 5 | 46 |
| 6 | 103 |
| 7 | 208 |
| 8 | 431 |
| 9 | 849 |
| 10 | 1671 |
| 11 | 3195 |
| 12 | 6079 |
| 13 | 11321 |
| 14 | 20937 |
| 15 | 38146 |
| 16 | 68931 |
| 17 | 123121 |
| 18 | 218212 |
| 19 | 383019 |
| 20 | 667425 |
| 21 | 1153544 |
| 22 | 1980268 |
| 23 | 3375394 |
| 24 | 5717773 |
| 25 | 9624541 |
| 26 | 16108496 |
| 27 | 26807662 |
| 28 | 44379189 |
| 29 | 73089219 |
| 30 | 119789926 |
| 31 | 195401275 |
| 32 | 317309532 |
| 33 | 513025167 |
| 34 | 826000651 |