# A173279 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 1
4 6
5 1
6 24
7 2
8 1
9 120
10 6
11 1
12 720
13 24
14 2
15 1
16 5040
17 120
18 6
19 1
20 40320
21 720
22 24
23 2
24 1
25 362880
26 5040
27 120
28 6
29 1
30 3628800
31 40320
32 720
33 24
34 2
35 1
36 39916800
37 362880
38 5040
39 120
40 6
41 1
42 479001600
43 3628800
44 40320
45 720
46 24
47 2
48 1
49 6227020800
50 39916800
51 362880
52 5040
53 120
54 6
55 1
56 87178291200