# A151830 (b-file synthesized from sequence entry)
1 1
2 4
3 28
4 234
5 2162
6 21272
7 218740
8 2323730
9 25314097
10 281345096
11 3178474308
12 36400646766
13 421693622520
14 4933625049464
15 58216226287844
16 692095652493483