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 | 4 |
| 3 | 9 |
| 4 | 49 |
| 5 | 64 |
| 6 | 81 |
| 7 | 225 |
| 8 | 625 |
| 9 | 1225 |
| 10 | 2025 |
| 11 | 3025 |
| 12 | 4225 |
| 13 | 5625 |
| 14 | 7225 |
| 15 | 9025 |
| 16 | 15625 |
| 17 | 27225 |
| 18 | 30625 |
| 19 | 34225 |
| 20 | 42025 |
| 21 | 50625 |
| 22 | 60025 |
| 23 | 70225 |
| 24 | 75625 |
| 25 | 81225 |
| 26 | 93025 |
| 27 | 105625 |
| 28 | 275625 |
| 29 | 330625 |
| 30 | 600625 |
| 31 | 893025 |
| 32 | 950625 |
| 33 | 970225 |
| 34 | 1050625 |
| 35 | 2030625 |
| 36 | 3330625 |
| 37 | 4950625 |
| 38 | 9455625 |
| 39 | 9765625 |
| 40 | 15405625 |