# A148891 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 8
4 31
5 99
6 411
7 1512
8 6497
9 25717
10 113560
11 470615
12 2119435
13 9069212
14 41430503
15 181543837
16 838373030
17 3740867568
18 17423551011
19 78857867841
20 369838661718
21 1693046404678
22 7985762164083
23 36898943558246
24 174881314068075
25 814316512661987
26 3875201367249076
27 18161941728609720
28 86733820305600697