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 | 9 |
| 2 | 25 |
| 3 | 121 |
| 4 | 361 |
| 5 | 841 |
| 6 | 3481 |
| 7 | 3721 |
| 8 | 5041 |
| 9 | 6241 |
| 10 | 10201 |
| 11 | 17161 |
| 12 | 19321 |
| 13 | 32761 |
| 14 | 39601 |
| 15 | 73441 |
| 16 | 121801 |
| 17 | 143641 |
| 18 | 167281 |
| 19 | 201601 |
| 20 | 212521 |
| 21 | 271441 |
| 22 | 323761 |
| 23 | 326041 |
| 24 | 398161 |
| 25 | 410881 |
| 26 | 436921 |
| 27 | 546121 |
| 28 | 564001 |
| 29 | 674041 |
| 30 | 776161 |
| 31 | 863041 |
| 32 | 982081 |
| 33 | 1062961 |
| 34 | 1079521 |
| 35 | 1104601 |
| 36 | 1142761 |
| 37 | 1190281 |
| 38 | 1274641 |
| 39 | 1324801 |