# A019144 (b-file synthesized from sequence entry)
3 0
4 2
5 2
6 7
7 13
8 25
9 42
10 81
11 193
12 454
13 1041
14 2502
15 6242
16 13807
17 35326
18 87295
19 209812
20 548575
21 1343566
22 3489028
23 8907422
24 22985251
25 59673055
26 154469560
27 402551592
28 1046972388
29 2729730656
30 7118291151
31 18566002813