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 | 0 |
| 2 | 1 |
| 3 | 25 |
| 4 | 25 |
| 5 | 1 |
| 6 | 209 |
| 7 | 209 |
| 8 | 1 |
| 9 | 1729 |
| 10 | 1984 |
| 11 | 4641 |
| 12 | 2500 |
| 13 | 2500 |
| 14 | 5264 |
| 15 | 1984 |
| 16 | 1729 |
| 17 | 1 |
| 18 | 14336 |
| 19 | 17284 |
| 20 | 37444 |
| 21 | 17284 |
| 22 | 14336 |
| 23 | 4641 |
| 24 | 1 |
| 25 | 122449 |
| 26 | 126201 |
| 27 | 148761 |
| 28 | 152100 |
| 29 | 165025 |
| 30 | 217124 |
| 31 | 221089 |
| 32 | 227904 |
| 33 | 229449 |
| 34 | 237969 |
| 35 | 248521 |
| 36 | 248900 |
| 37 | 250000 |
| 38 | 250000 |
| 39 | 248900 |
| 40 | 248521 |