# A180047 (b-file synthesized from sequence entry)
0 0
1 0
2 1
3 0
4 2
5 0
6 6
7 1
8 0
9 24
10 6
11 0
12 120
13 36
14 1
15 0
16 720
17 240
18 12
19 0
20 5040
21 1800
22 120
23 1
24 0
25 40320
26 15120
27 1200
28 20
29 0
30 362880
31 141120
32 12600
33 300
34 1
35 0
36 3628800
37 1451520
38 141120
39 4200
40 30
41 0
42 39916800
43 16329600
44 1693440
45 58800
46 630
47 1
48 0
49 479001600