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A090561
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Least n-th power that begins with k^(n-1) for some k > 1.
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1
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1, 4, 64, 81, 16807, 1000000, 10000000, 100000000, 1000000000, 10000000000, 100000000000, 1000000000000, 10000000000000, 100000000000000, 1000000000000000, 10000000000000000, 100000000000000000
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| a(n) = 10^n for 6 <= n <= 500 (I haven't checked past 500.) - David Wasserman (wasserma(AT)spawar.navy.mil), Jan 05 2006
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EXAMPLE
| a(1) = 1 because 1 begins with 2^0. a(5) = 16807 because 16807 begins with 2^4.
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CROSSREFS
| Cf. A090568.
Cf. A067442.
Sequence in context: A024256 A203512 A111444 * A016934 A056229 A062271
Adjacent sequences: A090558 A090559 A090560 * A090562 A090563 A090564
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KEYWORD
| base,nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Dec 11 2003
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EXTENSIONS
| Corrected and extended by David Wasserman (wasserma(AT)spawar.navy.mil), Jan 05 2006
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