# A169934 (b-file synthesized from sequence entry)
1 0
2 0
3 0
4 1
5 5
6 66
7 392
8 4859
9 34659
10 482272
11 4099634
12 65762489
13 653977909
14 12026621478
15 137361430156
16 2862534403223
17 36968414699239
18 862935261673212
19 12440701298168534
20 321935664074780549