# A127517 (b-file synthesized from sequence entry)
1 1
2 2
3 6
4 30
5 60
6 420
7 840
8 280
9 2520
10 2520
11 2520
12 27720
13 27720
14 27720
15 471240
16 942480
17 314160
18 9110640
19 9110640
20 1822128
21 41908944
22 209544720
23 2724081360
24 908027120
25 17252515280
26 17252515280
27 17252515280
28 17252515280
29 465817912560