n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 180 |
4 | 1134000 |
5 | 3465651420000000 |
6 | 356414438712215830124178000000000000000 |
7 | 1311750338118625705168608107387873609070899443110750355586669940000000000000000000000000000000 |
[1,2,6,180,1134000,3465651420000000, 356414438712215830124178000000000000000, 13117503381186257051686081073878736090708994431107\ 50355586669940000000000000000000000000000000] |