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 | 7 |
| 4 | 11 |
| 5 | 25 |
| 6 | 38 |
| 7 | 47 |
| 8 | 94 |
| 9 | 95 |
| 10 | 155 |
| 11 | 275 |
| 12 | 277 |
| 13 | 292 |
| 14 | 299 |
| 15 | 395 |
| 16 | 409 |
| 17 | 614 |
| 18 | 1409 |
| 19 | 1963 |
| 20 | 3422 |
| 21 | 5243 |
| 22 | 5884 |
| 23 | 5971 |
| 24 | 8527 |
| 25 | 10882 |
| 26 | 13223 |
| 27 | 16406 |
| 28 | 20851 |
| 29 | 28886 |