

A103173


Numbers k such that the decimal digits of k are not present in k^2, k^3, or k^4.


3




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



