n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 20 |
3 | 980 |
4 | 232848 |
5 | 267227532 |
6 | 1478619421136 |
7 | 39405996318420160 |
8 | 5055160684040254910720 |
9 | 3120344782196754906063540800 |
10 | 9265037718181937012241727284450000 |
11 | 132307448895406086706107959899799334375000 |
[1,2,20,980,232848,267227532,1478619421136, 39405996318420160,5055160684040254910720, 3120344782196754906063540800, 9265037718181937012241727284450000, 132307448895406086706107959899799334375000] |