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A133208 a(n) is the smallest number k such that k^n has the same digits as some other n-th power without leading zeros. 1
12, 12, 5, 4, 348, 731, 1001, 1001, 3747, 6526, 10001, 3967, 19365, 29088, 9436, 53331, 30484, 72091, 49255, 30342, 59579, 52604, 280501, 88379, 445885, 452341, 98107, 755179, 490404, 126493, 205417, 170613, 781944, 821573, 1808904, 209732, 1470036, 559096, 946969 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The case where 10^n has the same digits as 1^n is excluded by no leading zeros constraint.

LINKS

Chai Wah Wu, Table of n, a(n) for n = 1..105

EXAMPLE

12^2 = 144 - the same digits as 21^2 = 441.

5^3 = 125 - the same digits as 8^3 = 512.

4^4 = 256 - the same digits as 5^4 = 625.

348^5 = 5103830227968 - the same digits as 381^5 = 8028323765901.

CROSSREFS

Sequence in context: A281251 A247511 A097824 * A118877 A112124 A268916

Adjacent sequences:  A133205 A133206 A133207 * A133209 A133210 A133211

KEYWORD

base,more,nonn

AUTHOR

Tanya Khovanova, Oct 10 2007

EXTENSIONS

a(6)-a(34) from Donovan Johnson, Apr 22 2008

a(35)-a(39) from Chai Wah Wu, Jun 01 2020

a(1) from Chai Wah Wu, Jun 02 2020

STATUS

approved

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Last modified September 21 10:53 EDT 2020. Contains 337268 sequences. (Running on oeis4.)