# A128648 (b-file synthesized from sequence entry)
1 1
2 2
3 4
4 12
5 60
6 5
7 80
8 720
9 7920
10 55440
11 55440
12 6160
13 6160
14 18480
15 425040
16 5525520
17 160240080
18 160240080
19 53413360
20 53413360
21 480720240
22 480720240
23 19709529840
24 19709529840
25 39419059680
26 197095298400
27 3350620072800
28 177582863858400