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 | 26 |
| 6 | 42 |
| 7 | 74 |
| 8 | 132 |
| 9 | 236 |
| 10 | 421 |
| 11 | 747 |
| 12 | 1314 |
| 13 | 2318 |
| 14 | 4101 |
| 15 | 7263 |
| 16 | 12864 |
| 17 | 22773 |
| 18 | 40291 |
| 19 | 71272 |
| 20 | 126099 |
| 21 | 223144 |
| 22 | 394895 |
| 23 | 698823 |
| 24 | 1236609 |
| 25 | 2188185 |
| 26 | 3872000 |
| 27 | 6851631 |
| 28 | 12124307 |
| 29 | 21454602 |
| 30 | 37964931 |
| 31 | 67180507 |
| 32 | 118878510 |
| 33 | 210360283 |
| 34 | 372241362 |
| 35 | 658697067 |