# A019250 (b-file synthesized from sequence entry)
3 0
4 0
5 4
6 4
7 7
8 30
9 50
10 106
11 320
12 734
13 1606
14 4238
15 10735
16 25992
17 65243
18 166303
19 420964
20 1075250
21 2768641
22 7162869
23 18614509
24 48703066
25 128092492
26 338243964
27 897092356
28 2389751405
29 6386698936
30 17120652598
31 46028927058