# A189838 (b-file synthesized from sequence entry)
1 1
2 2
3 4
4 16
5 36
6 128
7 672
8 4264
9 25044
10 173712
11 1318904
12 11069056
13 96808692
14 927478976
15 9435033872
16 103783608480
17 1195155968388