# A039671 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 8
4 21
5 53
6 130
7 310
8 724
9 1661
10 3757
11 8398
12 18588
13 40800
14 88918
15 192592
16 414907
17 889631
18 1899554
19 4040864
20 8567342
21 18109698
22 38176280
23 80278798
24 168432854
25 352658013
26 736977583
27 1537420460
28 3202035086
29 6658948608