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A168138 as a simple table

n a(n)
1 1
2 4
3 9
4 125
5 64
6 28561
7 441
8 1336336
9 166375
10 62742241
11 20736
12 160005726539569
13 142129
14 138458410000
15 949005240561
16 10387823949447757
17 6677056
18 5341718593932745951081
19 45765225
20 1720016697051086543327296
21 98394841894789441

[1,4,9,125,64,28561,441,1336336,166375,62742241,
 20736,160005726539569,142129,138458410000,
 949005240561,10387823949447757,6677056,
 5341718593932745951081,45765225,
 1720016697051086543327296,98394841894789441]

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Last modified December 10 15:09 EST 2019. Contains 329896 sequences. (Running on oeis4.)