# A122835 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 19
4 112
5 811
6 7024
7 70939
8 818752
9 10630891
10 153371344
11 2433948859
12 42137351392
13 790287522571
14 15962014455664
15 345424786466779
16 7973482022972032
17 195556150543703851
18 5078301994885267984