# A150843 (b-file synthesized from sequence entry)
0 1
1 2
2 8
3 32
4 138
5 616
6 2816
7 13108
8 61764
9 293968
10 1409604
11 6800654
12 32970232
13 160487760
14 783813576
15 3838839984
16 18845981576
17 92707895520
18 456847371156
19 2254651625402
20 11141837104710
21 55122849299652
22 272988026623936
23 1353135158061896
24 6712438835266828
25 33321394925379744
26 165514812006856556