# A153932 (b-file synthesized from sequence entry)
0 1
1 2
2 2
3 3
4 8
5 13
6 39
7 225
8 564
9 2858
10 24012
11 101231
12 758165
13 10608857
14 69903886
15 854166606
16 19155776749
17 207379552763
18 4126912621572