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 | 6 |
| 4 | 10 |
| 5 | 14 |
| 6 | 20 |
| 7 | 30 |
| 8 | 38 |
| 9 | 50 |
| 10 | 64 |
| 11 | 86 |
| 12 | 108 |
| 13 | 136 |
| 14 | 178 |
| 15 | 222 |
| 16 | 276 |
| 17 | 330 |
| 18 | 408 |
| 19 | 500 |
| 20 | 618 |
| 21 | 774 |
| 22 | 962 |
| 23 | 1178 |
| 24 | 1432 |
| 25 | 1754 |
| 26 | 2160 |
| 27 | 2660 |
| 28 | 3292 |