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 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 16 |
| 5 | 31 |
| 6 | 60 |
| 7 | 116 |
| 8 | 224 |
| 9 | 433 |
| 10 | 837 |
| 11 | 1618 |
| 12 | 3128 |
| 13 | 6047 |
| 14 | 11690 |
| 15 | 22599 |
| 16 | 43688 |
| 17 | 84457 |
| 18 | 163271 |
| 19 | 315633 |
| 20 | 610177 |
| 21 | 1179585 |
| 22 | 2280356 |
| 23 | 4408350 |
| 24 | 8522156 |
| 25 | 16474904 |
| 26 | 31849037 |
| 27 | 61570080 |
| 28 | 119026354 |
| 29 | 230099960 |
| 30 | 444825787 |
| 31 | 859930531 |
| 32 | 1662404788 |
| 33 | 3213735970 |
| 34 | 6212746113 |