n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 52 |
3 | 504 |
4 | 5136 |
5 | 53856 |
6 | 575296 |
7 | 6225792 |
8 | 68026624 |
9 | 748832256 |
10 | 8291791872 |
11 | 92255680512 |
12 | 1030537089024 |
13 | 11550176206848 |
14 | 129824329777152 |
15 | 1462841567576064 |
16 | 16518691986407424 |
17 | 186887008999047168 |
18 | 2117944490818011136 |
19 | 24038305911245635584 |
20 | 273199990096465494016 |
[1,6,52,504,5136,53856,575296,6225792,68026624, 748832256,8291791872,92255680512,1030537089024, 11550176206848,129824329777152,1462841567576064, 16518691986407424,186887008999047168, 2117944490818011136,24038305911245635584, 273199990096465494016] |