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 | 9 |
| 3 | 49 |
| 4 | 81 |
| 5 | 169 |
| 6 | 361 |
| 7 | 441 |
| 8 | 729 |
| 9 | 841 |
| 10 | 1369 |
| 11 | 1521 |
| 12 | 1849 |
| 13 | 2401 |
| 14 | 2809 |
| 15 | 3249 |
| 16 | 3721 |
| 17 | 3969 |
| 18 | 5041 |
| 19 | 6241 |
| 20 | 6561 |
| 21 | 7569 |
| 22 | 7921 |
| 23 | 8281 |
| 24 | 10201 |
| 25 | 11449 |
| 26 | 12321 |
| 27 | 12769 |
| 28 | 13689 |
| 29 | 16641 |
| 30 | 17161 |
| 31 | 17689 |
| 32 | 19321 |
| 33 | 21609 |
| 34 | 22801 |
| 35 | 25281 |
| 36 | 26569 |
| 37 | 28561 |
| 38 | 29241 |
| 39 | 29929 |
| 40 | 32761 |
| 41 | 33489 |
| 42 | 35721 |