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A175699 a(n) = n ^ phi(n-1), phi(n) = A000010(n) = Euler totient function. 2
1, 2, 3, 16, 25, 1296, 49, 262144, 6561, 1000000, 14641, 61917364224, 28561, 56693912375296, 11390625, 4294967296, 6975757441, 121439531096594251776, 47045881 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..19.

EXAMPLE

For n = 6, a(6) = 6 ^ phi(6-1) = 6 ^ A000010(5) = 6 ^ 4 = 1296.

MATHEMATICA

Table[n^EulerPhi[n-1], {n, 20}] (* Harvey P. Dale, Jul 11 2020 *)

PROG

(PARI) a(n)=n^eulerphi(n-1) \\ Charles R Greathouse IV, Feb 21 2013

CROSSREFS

Sequence in context: A147662 A074182 A074759 * A102882 A085734 A302837

Adjacent sequences:  A175696 A175697 A175698 * A175700 A175701 A175702

KEYWORD

nonn

AUTHOR

Jaroslav Krizek, Aug 09 2010

STATUS

approved

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Last modified May 27 02:41 EDT 2022. Contains 354093 sequences. (Running on oeis4.)