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 | 4 |
| 2 | 8 |
| 3 | 9 |
| 4 | 16 |
| 5 | 32 |
| 6 | 49 |
| 7 | 64 |
| 8 | 128 |
| 9 | 133 |
| 10 | 256 |
| 11 | 259 |
| 12 | 512 |
| 13 | 961 |
| 14 | 1024 |
| 15 | 2048 |
| 16 | 2059 |
| 17 | 2449 |
| 18 | 3713 |
| 19 | 4096 |
| 20 | 4681 |
| 21 | 4867 |
| 22 | 6169 |
| 23 | 6241 |
| 24 | 8192 |
| 25 | 8401 |
| 26 | 8773 |
| 27 | 9353 |
| 28 | 10261 |
| 29 | 10561 |
| 30 | 12307 |
| 31 | 12449 |
| 32 | 16129 |
| 33 | 16384 |
| 34 | 16459 |
| 35 | 16531 |
| 36 | 16771 |
| 37 | 18467 |
| 38 | 20491 |
| 39 | 24649 |
| 40 | 24721 |
| 41 | 24961 |
| 42 | 25217 |