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A068123
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Smallest n-th power beginning with n copies of n.
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3
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OFFSET
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1,2
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COMMENTS
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The b-file stops at a(22) because a(23) has 1060 digits. - Giovanni Resta, Jul 12 2016
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LINKS
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Ray Chandler, Table of n, a(n) for n = 1..22
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EXAMPLE
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a(3) = 33386248 = 322^3 begins with 333.
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MATHEMATICA
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a[n_] := Block[{t = Flatten@ Table[ IntegerDigits@n, {n}], m, v, h=0}, m = Length@ t; z = FromDigits@ t; While[ Take[ IntegerDigits[ (v = Ceiling[(z 10^h) ^ (1/n)])^n], m] != t, h++]; v^n]; Array[a, 22] (* Giovanni Resta, Jul 12 2016 *)
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CROSSREFS
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Cf. A068124.
Sequence in context: A151653 A077729 A077737 * A013875 A043670 A296898
Adjacent sequences: A068120 A068121 A068122 * A068124 A068125 A068126
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KEYWORD
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base,easy,nonn
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AUTHOR
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Amarnath Murthy, Feb 21 2002
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EXTENSIONS
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Corrected and extended by David Wasserman, Dec 23 2002
a(8) = 415533397^8 has 69 digits. a(9) = 215443469^9 has 75.
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STATUS
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approved
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