# A205886 (b-file synthesized from sequence entry)
1 1
2 2
3 12
4 136
5 2160
6 44048
7 1098048
8 32353536
9 1100025600
10 42390108672
11 1825776471552
12 86917798041600
13 4531977405935616
14 256853921275299840
15 15722230877270212608
16 1033667815031620239360
17 72646598313232772038656
18 5435067361538551649402880