# A168513 (b-file synthesized from sequence entry)
1 21
2 36
3 300
4 722
5 2493
6 4766
7 9459
8 13091
9 18484
10 18779
11 18048
12 12995
13 9122
14 4424
15 2160
16 639
17 234
18 48
19 8
20 0
21 0