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 | 27 |
| 3 | 27 |
| 4 | 0 |
| 5 | 125 |
| 6 | 27 |
| 7 | 343 |
| 8 | 0 |
| 9 | 216 |
| 10 | 125 |
| 11 | 1331 |
| 12 | 0 |
| 13 | 2197 |
| 14 | 343 |
| 15 | 3375 |
| 16 | 216 |
| 17 | 4913 |
| 18 | 729 |
| 19 | 6859 |
| 20 | 0 |
| 21 | 9261 |
| 22 | 1331 |
| 23 | 12167 |
| 24 | 0 |
| 25 | 1000 |
| 26 | 2197 |
| 27 | 729 |
| 28 | 0 |
| 29 | 24389 |
| 30 | 3375 |
| 31 | 29791 |
| 32 | 0 |
| 33 | 35937 |
| 34 | 4913 |
| 35 | 42875 |
| 36 | 0 |
| 37 | 50653 |
| 38 | 6859 |
| 39 | 59319 |
| 40 | 0 |
| 41 | 68921 |
| 42 | 9261 |
| 43 | 79507 |
| 44 | 0 |
| 45 | 3375 |
| 46 | 12167 |
| 47 | 103823 |
| 48 | 5832 |