# A170811 (b-file synthesized from sequence entry)
1 1
2 2
3 4
4 12
5 40
6 116
7 200
8 444
9 760
10 2160
11 4368
12 7852
13 14040
14 24284
15 42312
16 79340
17 152764
18 320920
19 688780
20 1577244
21 3763512
22 9412948