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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 32 |
| 2 | 512 |
| 3 | 5472 |
| 4 | 44032 |
| 5 | 285088 |
| 6 | 1549824 |
| 7 | 7288544 |
| 8 | 30382080 |
| 9 | 114509600 |
| 10 | 396241408 |
| 11 | 1273082976 |
| 12 | 3829072896 |
| 13 | 10848180384 |
| 14 | 29093973504 |
| 15 | 74178420192 |
| 16 | 180482027520 |
| 17 | 420523089440 |
| 18 | 941348409856 |
| 19 | 2030565262176 |
| 20 | 4232440732672 |
| 21 | 8546273961888 |
| 22 | 16756632155648 |
[1,32,512,5472,44032,285088,1549824,7288544, 30382080,114509600,396241408,1273082976, 3829072896,10848180384,29093973504,74178420192, 180482027520,420523089440,941348409856, 2030565262176,4232440732672,8546273961888, 16756632155648] |