# A002881 (b-file synthesized from sequence entry)
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 1
10 0
11 0
12 9
13 34
14 104
15 283
16 953
17 3029
18 9513
19 30359
20 98969
21 323646
22 1080659
23 3668432
24 12608491