# A149052 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 10
4 40
5 152
6 663
7 2764
8 12535
9 54868
10 254618
11 1149816
12 5416066
13 24963487
14 118813118
15 555574475
16 2664192114
17 12590183411
18 60716475411
19 289237761617
20 1400959354137
21 6715638325853
22 32640829654516
23 157247695092057
24 766435077201282
25 3707253492778648
26 18111174831201882
27 87896052331507647