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 | 91 |
| 2 | 103 |
| 3 | 124 |
| 4 | 166 |
| 5 | 244 |
| 6 | 400 |
| 7 | 700 |
| 8 | 1300 |
| 9 | 2476 |
| 10 | 4828 |
| 11 | 9484 |
| 12 | 18796 |
| 13 | 37324 |
| 14 | 74380 |
| 15 | 148300 |
| 16 | 296140 |
| 17 | 591436 |
| 18 | 1182028 |
| 19 | 2362444 |
| 20 | 4723276 |
| 21 | 9443404 |
| 22 | 18883660 |
| 23 | 37761100 |
| 24 | 75515980 |
| 25 | 151019596 |
| 26 | 302026828 |
| 27 | 604029004 |
| 28 | 1208033356 |
| 29 | 2416017484 |
| 30 | 4831985740 |