# A369156 (b-file synthesized from sequence entry)
0 1
1 4
2 22
3 140
4 968
5 7064
6 53544
7 417456
8 3326304
9 26967040
10 221733568
11 1844667136
12 15498804480
13 131325820032
14 1120928667264
15 9628975973120
16 83181462291968
17 722175844640768
18 6297942966129664
19 55143987250677760
20 484589284705202176
21 4272491458636754944