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 | 36 |
| 2 | 324 |
| 3 | 1600 |
| 4 | 15876 |
| 5 | 38416 |
| 6 | 82944 |
| 7 | 302500 |
| 8 | 527076 |
| 9 | 876096 |
| 10 | 2160900 |
| 11 | 3240000 |
| 12 | 4734976 |
| 13 | 9474084 |
| 14 | 13032100 |
| 15 | 17640000 |
| 16 | 30980356 |
| 17 | 40297104 |
| 18 | 51840000 |
| 19 | 83283876 |
| 20 | 104162436 |
| 21 | 129231424 |
| 22 | 194602500 |
| 23 | 236421376 |
| 24 | 285474816 |
| 25 | 409252900 |
| 26 | 486202500 |