# A006927 (b-file synthesized from sequence entry)
0 0
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 0
10 0
11 0
12 1
13 3
14 21
15 545
16 30368
17 1782839
18 95079080
19 4686063107