1 10
2 40
3 50
4 200
5 468
6 3744
7 5760
8 8528
9 10400
10 18720
11 28800
12 42640
13 93600
14 112850
15 213200
16 451400
17 846144
18 925000
19 1108224
20 2257000
21 2350400
22 3078400
23 4230720
24 5541120
25 14800000
26 21153600
27 23472800
28 27705600
29 34112000
30 36112000
31 43804800
32 65001600
33 77875200
34 133200000
35 170560000
36 211255200
37 325008000
38 481192400
39 5304852800
40 7668633600
41 15584400000