n | a(n) |
---|---|
0 | 1 |
1 | 96 |
2 | 2808 |
3 | 43680 |
4 | 450450 |
5 | 3459456 |
6 | 21237216 |
7 | 109219968 |
8 | 486370170 |
9 | 1921462400 |
10 | 6859620768 |
11 | 22449667968 |
12 | 68128506264 |
13 | 193501082880 |
14 | 518306472000 |
15 | 1317650231040 |
16 | 3196331224515 |
17 | 7432299594720 |
18 | 16630917303000 |
19 | 35933837940000 |
20 | 75191555889450 |
21 | 152770145299200 |
[1,96,2808,43680,450450,3459456,21237216, 109219968,486370170,1921462400,6859620768, 22449667968,68128506264,193501082880,518306472000, 1317650231040,3196331224515,7432299594720, 16630917303000,35933837940000,75191555889450, 152770145299200] |