# A303030 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 4
4 12
5 22
6 68
7 166
8 534
9 1589
10 5464
11 18579
12 68320
13 255424
14 1000852
15 4018156
16 16671976
17 70890940
18 309439942
19 1381815168
20 6310880471
21 29428287639
22 140012980007
23 678970863717
24 3353545264060
25 16857749613964
26 86191265140699
27 447951112379963
28 2365177154077186