# A156565 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 1
4 1
5 2
6 1
7 2
8 3
9 6
10 1
11 3
12 8
13 21
14 24
15 1
16 4
17 15
18 104
19 105
20 120
21 1
22 5
23 24
24 315
25 1040
26 3255
27 720
28 1
29 6
30 35
31 744
32 5355
33 125840
34 9765
35 5040
36 1
37 7
38 48
39 1505
40 19344
41 1826055
42 880880
43 1240155
44 40320
45 1
46 8
47 63
48 2736
49 55685
50 15107664
51 23738715
52 962801840