# A227463 (b-file synthesized from sequence entry)
1 1
2 2
3 10
4 80
5 876
6 12192
7 206144
8 4104704
9 94092112
10 2440642560
11 70676191840
12 2260198354944
13 79113937385536
14 3008546200346624
15 123513154739070976
16 5444598073252904960
17 256489070938397360384
18 12859678961654923395072
19 683701585124386481758720