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 | 1 |
| 2 | 3 |
| 3 | 9 |
| 4 | 15 |
| 5 | 25 |
| 6 | 63 |
| 7 | 121 |
| 8 | 195 |
| 9 | 255 |
| 10 | 361 |
| 11 | 483 |
| 12 | 729 |
| 13 | 841 |
| 14 | 1443 |
| 15 | 3363 |
| 16 | 3481 |
| 17 | 3721 |
| 18 | 5041 |
| 19 | 6241 |
| 20 | 10201 |
| 21 | 15625 |
| 22 | 17161 |
| 23 | 18224 |
| 24 | 19321 |
| 25 | 24963 |
| 26 | 31683 |
| 27 | 32761 |
| 28 | 39601 |
| 29 | 58564 |
| 30 | 59049 |
| 31 | 65535 |
| 32 | 73441 |
| 33 | 88208 |
| 34 | 110889 |
| 35 | 121801 |
| 36 | 143641 |
| 37 | 145923 |
| 38 | 149769 |
| 39 | 167281 |