# A153190 (b-file synthesized from sequence entry)
0 1
1 2
2 6
3 2
4 8
5 48
6 2
7 10
8 80
9 880
10 2
11 12
12 120
13 1680
14 30240
15 2
16 14
17 168
18 2856
19 62832
20 1696464
21 2
22 16
23 224
24 4480
25 116480
26 3727360
27 141639680
28 2
29 18
30 288
31 6624
32 198720
33 7352640
34 323516160
35 16499324160
36 2
37 20
38 360
39 9360
40 318240
41 13366080
42 668304000