# A138533 (b-file synthesized from sequence entry)
1 1
2 2
3 1
4 6
5 3
6 1
7 24
8 12
9 4
10 1
11 6
12 120
13 60
14 20
15 5
16 1
17 30
18 10
19 720
20 360
21 120
22 30
23 6
24 1
25 180
26 60
27 15
28 20
29 90