# A333445 (b-file synthesized from sequence entry)
1 1
2 2
3 3
4 6
5 21
6 6
7 24
8 231
9 90
10 10
11 120
12 3465
13 2160
14 260
15 15
16 720
17 65835
18 71280
19 10920
20 600
21 21
22 5040
23 1514205
24 2993760
25 633360
26 39000
27 1197
28 28
29 40320
30 40883535
31 152681760
32 46868640
33 3510000
34 111321
35 2156
36 36
37 362880
38 1267389585
39 9160905600
40 4218177600