# A148508 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 5
4 17
5 34
6 126
7 279
8 1109
9 2630
10 10952
11 27224
12 117069
13 301131
14 1324917
15 3497413
16 15659409
17 42189154
18 191518970
19 524581088
20 2408054847
21 6686510441
22 30976454481
23 87005843410
24 406159058634
25 1152013925064
26 5412525047451
27 15481722677069
28 73137877330154
29 210739469726411
30 1000268546993907
31 2900792649672177