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 | 1 |
| 1 | 0 |
| 2 | 72 |
| 3 | 32 |
| 4 | 1104 |
| 5 | 672 |
| 6 | 7128 |
| 7 | 4032 |
| 8 | 28320 |
| 9 | 14784 |
| 10 | 84072 |
| 11 | 41184 |
| 12 | 206064 |
| 13 | 96096 |
| 14 | 441336 |
| 15 | 198016 |
| 16 | 855360 |
| 17 | 372096 |
| 18 | 1535112 |
| 19 | 651168 |
| 20 | 2592144 |
| 21 | 1076768 |
| 22 | 4165656 |
| 23 | 1700160 |
| 24 | 6425568 |
| 25 | 2583360 |
| 26 | 9575592 |
| 27 | 3800160 |
| 28 | 13856304 |
| 29 | 5437152 |
| 30 | 19548216 |
| 31 | 7594752 |
| 32 | 26974848 |