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 | 32 |
| 3 | 486 |
| 4 | 3072 |
| 5 | 12500 |
| 6 | 38880 |
| 7 | 100842 |
| 8 | 229376 |
| 9 | 472392 |
| 10 | 900000 |
| 11 | 1610510 |
| 12 | 2737152 |
| 13 | 4455516 |
| 14 | 6991712 |
| 15 | 10631250 |
| 16 | 15728640 |
| 17 | 22717712 |
| 18 | 32122656 |
| 19 | 44569782 |
| 20 | 60800000 |
| 21 | 81682020 |
| 22 | 108226272 |
| 23 | 141599546 |
| 24 | 183140352 |
| 25 | 234375000 |
| 26 | 297034400 |
| 27 | 373071582 |
| 28 | 464679936 |