# A347953 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 8
4 35
5 171
6 882
7 4744
8 26286
9 149045
10 860596
11 5042968
12 29913676
13 179270434
14 1083794310
15 6601817952
16 40479778395
17 249646876065
18 1547539929810
19 9637085582640
20 60260786147261
21 378212395786511
22 2381767469829332
23 15045137488662048
24 95304451461770250