# A143661 (b-file synthesized from sequence entry)
1 0
2 0
3 1
4 187
5 3721
6 41551
7 321809
8 1792727
9 7284325
10 21539704
11 45979736
12 69895468
13 74365276
14 54266201
15 26605433
16 8612476
17 1824397
18 252764
19 22673
20 1202
21 22