# A019089 (b-file synthesized from sequence entry)
3 0
4 0
5 4
6 6
7 4
8 24
9 46
10 100
11 224
12 626
13 1332
14 3558
15 9054
16 23406
17 56916
18 153209
19 395282
20 1031598
21 2680090
22 7143821
23 18739498
24 49780598
25 132071728
26 352703766
27 940103198
28 2521317666
29 6760089774
30 18187588014