# A189851 (b-file synthesized from sequence entry)
1 1
2 2
3 6
4 24
5 48
6 182
7 868
8 5752
9 22952
10 131766
11 912964
12 7556978
13 52602390
14 432795244
15 4121203656
16 44335718598
17 416447624724