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 | 2 |
| 2 | 4 |
| 3 | 6 |
| 4 | 10 |
| 5 | 14 |
| 6 | 18 |
| 7 | 22 |
| 8 | 28 |
| 9 | 34 |
| 10 | 42 |
| 11 | 48 |
| 12 | 56 |
| 13 | 66 |
| 14 | 74 |
| 15 | 82 |
| 16 | 94 |
| 17 | 106 |
| 18 | 118 |
| 19 | 130 |
| 20 | 142 |
| 21 | 154 |
| 22 | 166 |
| 23 | 182 |
| 24 | 198 |
| 25 | 214 |