# A133709 (b-file synthesized from sequence entry)
1 1
2 1
3 3
4 3
5 1
6 7
7 35
8 140
9 420
10 840
11 840
12 1
13 12
14 131
15 1435
16 15225
17 150570
18 1351770
19 10810800
20 75675600
21 454053600
22 2270268000
23 9081072000
24 27243216000
25 54486432000
26 54486432000
27 1
28 18
29 347
30 7693
31 185031
32 4568046
33 111793710
34 2661422400