# A150071 (b-file synthesized from sequence entry)
0 1
1 2
2 6
3 18
4 64
5 220
6 792
7 2844
8 10508
9 38726
10 144976
11 542780
12 2051752
13 7761764
14 29554000
15 112658878
16 431389136
17 1653790724
18 6360803312
19 24493717106
20 94551791464
21 365396555846
22 1414800367992
23 5483604012036
24 21286461979104
25 82707275267172
26 321758489858736
27 1252797572552836
28 4883010365872848