A056582 - cp's OEIS frontend

A056582 Highest common factor (or GCD) of n^n and hyperfactorial(n-1), i.e., gcd(n^n, product(k^k) for k < n).

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]

cp's OEIS Frontend

A056582 Highest common factor (or GCD) of n^n and hyperfactorial(n-1), i.e., gcd(n^n, product(k^k) for k < n).

Table of values

List of values