# A126392 (b-file synthesized from sequence entry)
0 1
1 5
2 19
3 75
4 295
5 1161
6 4569
7 17981
8 70763
9 278483
10 1095951
11 4313041
12 16973681
13 66798773
14 262882051
15 1034554523
16 4071419319
17 16022795225
18 63056626377
19 248155086189
20 976597549531
21 3843333571747
22 15125179200799
23 59524119253665