# A126850 (b-file synthesized from sequence entry)
2 2
3 3
4 4
5 7
6 8
7 15
8 24
9 60
10 168
11 480
12 1512
13 3360
14 12096
15 28448
16 64512
17 163760
18 401760
19 991872
20 2399040
21 6858000
22 13999104
23 32752000
24 69400800
25 172186560
26 517867392
27 1666990080
28 5662137600
29 14475575296
30 33946612000
31 73359820800
32 158022774000