# A153953 (b-file synthesized from sequence entry)
0 1
1 2
2 2
3 4
4 14
5 27
6 101
7 792
8 2945
9 22285
10 347018
11 2474658
12 35967994
13 1067132131
14 14741727949
15 415083462852
16 23780332109409
17 637547853540004
18 34814820669689930