# A150302 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 21
4 80
5 281
6 1138
7 4369
8 18302
9 73789
10 315759
11 1314708
12 5718763
13 24368034
14 107302457
15 464979845
16 2066691614
17 9071525567
18 40625817135
19 180148052526
20 811809392966
21 3629460525990
22 16440663433625
23 73999782874666
24 336685091247671
25 1523982877313501
26 6960274780373417
27 31655866376913556