# A019109 (b-file synthesized from sequence entry)
3 0
4 0
5 6
6 0
7 3
8 51
9 42
10 117
11 453
12 615
13 1509
14 4665
15 9159
16 22542
17 61659
18 143013
19 359028
20 942234
21 2362140
22 6096888
23 16004478
24 41649720
25 109662291
26 290536845
27 769577400
28 2049110310
29 5470439130
30 14619639972
31 39172342518