A056582 - OEIS

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A056582 as a simple table

n	a(n)
2	1
3	1
4	4
5	1
6	1728
7	1
8	65536
9	19683
10	3200000
11	1
12	8916100448256
13	1
14	13492928512
15	437893890380859375
16	18446744073709551616
17	1
18	39346408075296537575424
19	1
20	104857600000000000000000000

[1,1,4,1,1728,1,65536,19683,3200000,1, 8916100448256,1,13492928512,437893890380859375, 18446744073709551616,1,39346408075296537575424,1, 104857600000000000000000000]