# A097422 (b-file synthesized from sequence entry)
0 0
1 1
2 4
3 15
4 65
5 339
6 2103
7 15171
8 124755
9 1151331
10 11779971
11 132323811
12 1618766691
13 21421525731
14 304887173091
15 4644050174691
16 75378332568291
17 1298783923147491
18 23675771981669091
19 455240918799307491