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) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 4 |
| 5 | 9 |
| 6 | 20 |
| 7 | 36 |
| 8 | 64 |
| 9 | 100 |
| 10 | 156 |
| 11 | 225 |
| 12 | 324 |
| 13 | 441 |
| 14 | 600 |
| 15 | 784 |
| 16 | 1024 |
| 17 | 1296 |
| 18 | 1640 |
| 19 | 2025 |
| 20 | 2500 |
| 21 | 3025 |
| 22 | 3660 |
| 23 | 4356 |
| 24 | 5184 |
| 25 | 6084 |
| 26 | 7140 |
| 27 | 8281 |
| 28 | 9604 |
| 29 | 11025 |
| 30 | 12656 |
| 31 | 14400 |
| 32 | 16384 |
| 33 | 18496 |
| 34 | 20880 |
| 35 | 23409 |
| 36 | 26244 |
| 37 | 29241 |
| 38 | 32580 |
| 39 | 36100 |
| 40 | 40000 |
| 41 | 44100 |
| 42 | 48620 |
| 43 | 53361 |
| 44 | 58564 |
| 45 | 64009 |