# A150067 (b-file synthesized from sequence entry)
0 1
1 2
2 6
3 18
4 64
5 214
6 796
7 2794
8 10592
9 38234
10 146796
11 539662
12 2088738
13 7776760
14 30258146
15 113711678
16 444230508
17 1681513286
18 6589197570
19 25083944980
20 98521225220
21 376782492454
22 1482689306840
23 5692074277090
24 22433856920098
25 86401074784898
26 340957501840588
27 1316746539481798
28 5201785595166864