# A336999 (b-file synthesized from sequence entry)
1 1
2 8
3 45
4 544
5 3725
6 89856
7 858823
8 25271296
9 434776329
10 13241728000
11 285750755411
12 11494661861376
13 302956057862653
14 12945137688641536
15 446924199188379375
16 20735627677666902016
17 827246308572614396177
18 43155924331583693389824