# A046238 (b-file synthesized from sequence entry)
1 0
2 1
3 8
4 64
5 512
6 4096
7 125000
8 1000000
9 8000000
10 40707584
11 325660672
12 2605285376
13 13858588808
14 110868710464
15 886949683712
16 4748408986112
17 37987271888896
18 303898175111168
19 1628455122125000
20 13027640977000000