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A124648 Numbers n such that n^i (i=1..7) are all zeroless. 0
1, 2, 3, 5, 6, 68, 76, 3944, 15483 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

No other terms < 10^6. Is the sequence finite?

EXAMPLE

15483^i (i=1..7)= 15483, 239723289, 3711635683587, 57467255288977521, 889765513639238957643, 13776239447676336781186569, 213297515368372722383111647827 all zeroless

MATHEMATICA

Select[Range[10^6], FreeQ[Union[IntegerDigits[ # ], IntegerDigits[ #^2], IntegerDigits[ #^3], IntegerDigits[ #^4], IntegerDigits[ #^5], IntegerDigits[ #^6], IntegerDigits[ #^7]], 0]&]

CROSSREFS

Cf. A104264.

Sequence in context: A102977 A131599 A076384 * A093339 A113566 A020775

Adjacent sequences:  A124645 A124646 A124647 * A124649 A124650 A124651

KEYWORD

nonn,base

AUTHOR

Zak Seidov (zakseidov(AT)gmail.com), Dec 22 2006

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.