# A019073 (b-file synthesized from sequence entry)
3 0
4 2
5 2
6 4
7 14
8 30
9 46
10 141
11 321
12 648
13 1577
14 3589
15 7833
16 18573
17 43299
18 100786
19 244719
20 597693
21 1490664
22 3802784
23 9791113
24 25591883
25 67512476
26 178977181
27 476556092
28 1270559582
29 3386841730
30 9023105886
31 24004008044