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A020666 a(n)^n is the least n-th power containing every digit. 5
1023456789, 32043, 2326, 763, 309, 159, 56, 104, 49, 36, 25, 15, 25, 17, 17, 15, 16, 7, 5, 6, 6, 5, 11, 9, 14, 5, 5, 5, 5, 9, 5, 8, 11, 4, 4, 6, 5, 7, 3, 5, 4, 4, 6, 4, 3, 6, 3, 3, 4, 4, 5, 4, 3, 6, 4, 4, 3, 4, 4, 3, 3, 3, 3, 3, 3, 4, 3, 2, 3, 2, 3, 3, 3, 3, 4, 3, 3, 3, 2, 3, 4, 2, 3, 2, 3, 3, 2, 2, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

It is extremely probable that a(n) = 2 for all n >= 169.

LINKS

Table of n, a(n) for n=1..89.

CROSSREFS

Cf. A020667.

Sequence in context: A269120 A095733 A239919 * A074205 A277054 A218770

Adjacent sequences:  A020663 A020664 A020665 * A020667 A020668 A020669

KEYWORD

nonn,base

AUTHOR

David W. Wilson

STATUS

approved

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Last modified May 27 10:31 EDT 2020. Contains 334655 sequences. (Running on oeis4.)