# A120916 (b-file synthesized from sequence entry)
0 1
1 2
2 8
3 42
4 244
5 1504
6 9656
7 63856
8 431872
9 2972778
10 20756036
11 146627648
12 1046060836
13 7525452296
14 54530660832
15 397628393728
16 2915496099136
17 21481907631872
18 158975372309176
19 1181109256858096
20 8806197969093184