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A103173 Numbers k such that the decimal digits of k are not present in k^2, k^3, or k^4. 3
2, 3, 7, 8, 53, 77 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

No more terms exist below 10^100. The last five digits of any larger term must be 75557, 85557, 88787, 88188, 88988 or 98988. - Hagen von Eitzen, Jun 16 2009

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

For k=77, the 1st through 4th powers are {77, 5929, 456533, 35153041}.

Digits of k appear first in the 5th powers {32, 243, 16807, 32768, 418195493, 2706784157}.

CROSSREFS

Cf. A029783, A029790.

Sequence in context: A064669 A068342 A038034 * A098863 A053960 A114056

Adjacent sequences:  A103170 A103171 A103172 * A103174 A103175 A103176

KEYWORD

base,nonn,more

AUTHOR

Labos Elemer, Feb 28 2005

STATUS

approved

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Last modified August 9 18:55 EDT 2022. Contains 356026 sequences. (Running on oeis4.)