n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 3 |
4 | 8 |
5 | 40 |
6 | 162 |
7 | 1134 |
8 | 6128 |
9 | 55152 |
10 | 372560 |
11 | 4098160 |
12 | 33220512 |
13 | 431866656 |
14 | 4084265360 |
15 | 61263980400 |
16 | 662157708032 |
17 | 11256681036544 |
18 | 136873417800960 |
19 | 2600594938218240 |
20 | 35134918875668480 |
21 | 737833296389038080 |
22 | 10965215649174414848 |
23 | 252199959931011541504 |
[1,1,1,3,8,40,162,1134,6128,55152,372560,4098160, 33220512,431866656,4084265360,61263980400, 662157708032,11256681036544,136873417800960, 2600594938218240,35134918875668480, 737833296389038080,10965215649174414848, 252199959931011541504] |