n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 3 |
4 | 6 |
5 | 6 |
6 | 24 |
7 | 72 |
8 | 144 |
9 | 147 |
10 | 588 |
11 | 672 |
12 | 2136 |
13 | 10152 |
14 | 11520 |
15 | 29484 |
16 | 117936 |
17 | 270576 |
18 | 656352 |
19 | 2062368 |
20 | 4040160 |
[1,1,2,3,6,6,24,72,144,147,588,672,2136,10152, 11520,29484,117936,270576,656352,2062368,4040160] |