# A151305 (b-file synthesized from sequence entry)
0 1
1 2
2 8
3 34
4 158
5 780
6 3994
7 21108
8 114172
9 629550
10 3526532
11 20018456
12 114931060
13 666344104
14 3896536944
15 22958243962
16 136180482166
17 812648207806
18 4875775540560
19 29397986052418
20 178046737441226
21 1082749224714626
22 6609289796906656
23 40484406966736922
24 248779468243690200
25 1533328518945579542