# A208357 (b-file synthesized from sequence entry)
1 4
2 64
3 1764
4 68644
5 3341584
6 190992400
7 12310790116
8 871343837764
9 66469126179600
10 5391179227622500
11 460213149486493456
12 41024422751464102500
13 3795407861954983718544
14 362631040029370613957184
15 35638591665642822414493156
16 3590789985613539065908070116
17 369893506453438150061450367376