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 | 25 |
| 5 | 49 |
| 6 | 121 |
| 7 | 225 |
| 8 | 484 |
| 9 | 900 |
| 10 | 1764 |
| 11 | 3136 |
| 12 | 5929 |
| 13 | 10201 |
| 14 | 18225 |
| 15 | 30976 |
| 16 | 53361 |
| 17 | 88209 |
| 18 | 148225 |
| 19 | 240100 |
| 20 | 393129 |
| 21 | 627264 |
| 22 | 1004004 |
| 23 | 1575025 |
| 24 | 2480625 |
| 25 | 3833764 |
| 26 | 5934093 |
| 27 | 9060082 |
| 28 | 13823450 |
| 29 | 20838976 |
| 30 | 31404082 |
| 31 | 46810997 |
| 32 | 69700899 |
| 33 | 102868926 |