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 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 8 |
| 5 | 15 |
| 6 | 31 |
| 7 | 62 |
| 8 | 126 |
| 9 | 283 |
| 10 | 539 |
| 11 | 1177 |
| 12 | 2459 |
| 13 | 4969 |
| 14 | 10781 |
| 15 | 22297 |
| 16 | 45116 |
| 17 | 95759 |
| 18 | 201615 |
| 19 | 400755 |
| 20 | 830859 |
| 21 | 1741455 |
| 22 | 3505627 |
| 23 | 7099561 |
| 24 | 14607199 |
| 25 | 30112789 |
| 26 | 60176505 |
| 27 | 121626832 |
| 28 | 247652036 |
| 29 | 504389269 |
| 30 | 1010060135 |
| 31 | 2030792857 |
| 32 | 4102303316 |
| 33 | 8289676399 |
| 34 | 16659582365 |