# A144484 (b-file synthesized from sequence entry)
0 1
1 4
2 1
3 21
4 6
5 1
6 120
7 36
8 8
9 1
10 715
11 220
12 55
13 10
14 1
15 4368
16 1365
17 364
18 78
19 12
20 1
21 27132
22 8568
23 2380
24 560
25 105
26 14
27 1
28 170544
29 54264
30 15504
31 3876
32 816
33 136
34 16
35 1
36 1081575
37 346104
38 100947
39 26334
40 5985
41 1140
42 171
43 18
44 1
45 6906900
46 2220075
47 657800
48 177100