# A118025 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 6
4 28
5 216
6 2864
7 66656
8 2760896
9 205824384
10 27886535424
11 6924055315968
12 3173107641551872
13 2700294145104025600
14 4289542333320782426112
15 12777557344991526923034624
16 71652489091220599890081005568