# A141765 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 1
4 1
5 2
6 4
7 6
8 6
9 1
10 3
11 9
12 24
13 54
14 90
15 90
16 1
17 4
18 16
19 60
20 204
21 600
22 1440
23 2520
24 2520
25 1
26 5
27 25
28 120
29 540
30 2220
31 8100
32 25200
33 63000
34 113400
35 113400
36 1
37 6
38 36
39 210
40 1170
41 6120
42 29520
43 128520
44 491400
45 1587600
46 4082400
47 7484400
48 7484400
49 1
50 7
51 49
52 336
53 2226