# A131529 (b-file synthesized from sequence entry)
1 1
2 2
3 4
4 12
5 44
6 176
7 788
8 3936
9 23264
10 152112
11 1104876
12 8725320
13 74715908
14 687915040
15 6782261964
16 71294227456
17 796138700016
18 9409401651840
19 117378774461812