# A236579 (b-file synthesized from sequence entry)
0 1
1 3
2 15
3 75
4 371
5 1833
6 9057
7 44753
8 221137
9 1092699
10 5399327
11 26679563
12 131831075
13 651413681
14 3218814561
15 15905050017
16 78591236385
17 388340962771
18 1918899743823
19 9481812581835
20 46852249642771