# A037563 (b-file synthesized from sequence entry)
1 2
2 14
3 85
4 512
5 3074
6 18445
7 110672
8 664034
9 3984205
10 23905232
11 143431394
12 860588365
13 5163530192
14 30981181154
15 185887086925
16 1115322521552
17 6691935129314
18 40151610775885
19 240909664655312
20 1445457987931874