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 | 15 |
| 5 | 29 |
| 6 | 54 |
| 7 | 104 |
| 8 | 195 |
| 9 | 377 |
| 10 | 713 |
| 11 | 1385 |
| 12 | 2639 |
| 13 | 5147 |
| 14 | 9866 |
| 15 | 19304 |
| 16 | 37179 |
| 17 | 72929 |
| 18 | 140997 |
| 19 | 277133 |
| 20 | 537471 |
| 21 | 1058147 |
| 22 | 2057509 |
| 23 | 4056233 |
| 24 | 7904455 |
| 25 | 15600899 |
| 26 | 30458899 |
| 27 | 60174899 |
| 28 | 117675359 |
| 29 | 232676279 |
| 30 | 455657714 |
| 31 | 901620584 |
| 32 | 1767883499 |
| 33 | 3500409329 |
| 34 | 6871173869 |