# A148900 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 8
4 31
5 107
6 411
7 1571
8 6385
9 25550
10 105633
11 440141
12 1861495
13 7884724
14 33865441
15 146240291
16 635169909
17 2770387952
18 12169281883
19 53629296915
20 237212288003
21 1053240729331
22 4694825011413
23 20975651110254
24 93986248196520
25 422331165521818
26 1902349771392104
27 8585384908904559
28 38834978320859195