# A321415 (b-file synthesized from sequence entry)
1 0
2 2
3 2
4 10
5 2
6 64
7 2
8 330
9 1028
10 2010
11 2
12 24216
13 2
14 77528
15 964696
16 490314
17 2
18 11437750
19 2
20 21390330