# A373182 (b-file synthesized from sequence entry)
1 1
2 2
3 3
4 6
5 12
6 26
7 60
8 144
9 366
10 960
11 2640
12 7464
13 21960
14 66240
15 206760
16 660240
17 2172240
18 7298640
19 25179840
20 88583040
21 319097520
22 1170650880
23 4387582080
24 16728808320
25 65040796800
26 256987987200
27 1033805566080
28 4222598688000
29 17536408243200
30 73886160096000