# A072521 (b-file synthesized from sequence entry)
1 6
2 15
3 21
4 45
5 91
6 990
7 1711
8 365085
9 401856
10 713415
11 785631
12 1079715
13 1326006
14 2355535
15 2888406
16 5137615
17 5666661
18 5764710
19 9550635
20 9921285
21 10934826
22 19434495
23 21421785
24 23622501
25 42003195
26 46315500
27 82349361
28 146384605