# A147730 (b-file synthesized from sequence entry)
1 1
2 2
3 6
4 16
5 54
6 232
7 936
8 3880
9 17302
10 81584
11 409012
12 2138674
13 11754832
14 66857094
15 395646912
16 2409911234
17 15175510148