# A150384 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 23
4 98
5 361
6 1593
7 6288
8 28328
9 115850
10 529887
11 2219923
12 10237960
13 43662198
14 202691642
15 875687198
16 4085356332
17 17833779506
18 83512309548
19 367612178355
20 1726842287851
21 7653765309804
22 36044855095680
23 160691867249588
24 758388273185977
25 3397813146226703
26 16065577291899227
27 72289418439880710