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 | 64 |
| 2 | 1600 |
| 3 | 9216 |
| 4 | 30976 |
| 5 | 78400 |
| 6 | 166464 |
| 7 | 313600 |
| 8 | 541696 |
| 9 | 876096 |
| 10 | 1345600 |
| 11 | 1982464 |
| 12 | 2822400 |
| 13 | 3904576 |
| 14 | 5271616 |
| 15 | 6969600 |
| 16 | 9048064 |
| 17 | 11560000 |
| 18 | 14561856 |
| 19 | 18113536 |
| 20 | 22278400 |
| 21 | 27123264 |
| 22 | 32718400 |
| 23 | 39137536 |
| 24 | 46457856 |
| 25 | 54760000 |