# A375308 (b-file synthesized from sequence entry)
0 1
1 1
2 7
3 30
4 137
5 644
6 2936
7 13625
8 62701
9 289547
10 1335378
11 6161329
12 28424456
13 131135696
14 604991601
15 2791106585
16 12876698159
17 59406240678
18 274068969337
19 1264408966284
20 5833313285128
21 26911817257385
22 124156868897413
23 572794023175795
24 2642568194952474