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 | 9 |
| 3 | 25 |
| 4 | 49 |
| 5 | 121 |
| 6 | 212 |
| 7 | 1001 |
| 8 | 2636 |
| 9 | 10201 |
| 10 | 17161 |
| 11 | 22801 |
| 12 | 32761 |
| 13 | 36481 |
| 14 | 97969 |
| 15 | 110011 |
| 16 | 124609 |
| 17 | 139129 |
| 18 | 146689 |
| 19 | 528529 |
| 20 | 573049 |
| 21 | 619369 |
| 22 | 635209 |
| 23 | 844561 |
| 24 | 863041 |
| 25 | 1100011 |
| 26 | 10100101 |
| 27 | 11000011 |
| 28 | 101000101 |
| 29 | 106110601 |
| 30 | 110000011 |
| 31 | 110271001 |
| 32 | 112381201 |
| 33 | 127938721 |
| 34 | 130210921 |