# A189844 (b-file synthesized from sequence entry)
1 1
2 2
3 6
4 22
5 98
6 534
7 3334
8 23724
9 191820
10 1704532
11 16689868
12 179288892
13 2069311996
14 25760882744
15 345073745880
16 4900331447624