# A143499 (b-file synthesized from sequence entry)
4 1
5 8
6 1
7 72
8 18
9 1
10 720
11 270
12 30
13 1
14 7920
15 3960
16 660
17 44
18 1
19 95040
20 59400
21 13200
22 1320
23 60
24 1
25 1235520
26 926640
27 257400
28 34320
29 2340
30 78
31 1
32 17297280
33 15135120
34 5045040
35 840840
36 76440
37 3822
38 98
39 1
40 259459200
41 259459200
42 100900800
43 20180160
44 2293200