# A110130 (b-file synthesized from sequence entry)
0 1
1 0
2 2
3 4
4 22
5 136
6 504
7 5136
8 16966
9 240368
10 752800
11 13660480
12 41492284
13 918172848
14 2734083968
15 71399743744
16 209681631814
17 6312095369056
18 18348172005888
19 625558677709824
20 1804161160185748
21 68713071248064560