# A179961 (b-file synthesized from sequence entry)
0 1
1 1
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 0
10 0
11 0
12 0
13 0
14 0
15 0
16 2
17 1664
18 395576
19 40495488
20 2779045440
21 147689145984