# A178119 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 16
4 64
5 308
6 1727
7 11008
8 78244
9 611060
10 5184338
11 47366320
12 462782080
13 4807659368
14 52853722811
15 612426360832
16 7453621425532
17 94997205901940
18 1264555335831662
19 17540102647480336
20 252979919852470672