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Search: id:A061109
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| A061109 |
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a(1) = 1; a(n) = smallest number such that the concatenation a(1)a(2)...a(n) is an n-th power. |
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+0
3
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| 1, 6, 6375, 34623551127976881, 18860302374385155610185422853070042488899966126368559233360607121925651097253827\ 765970857
(list; graph; listen)
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OFFSET
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0,2
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REFERENCES
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Amarnath Murthy, Exploring some new ideas on Smarandache type sets, functions and sequences, Smarandache Notions Journal Vol. 11, No. 1-2-3, Spring 2000.
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LINKS
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M. L. Perez et al., eds., Smarandache Notions Journal
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EXAMPLE
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a(1) = 1, a(1)a(2) = 16 = 4^2, a(1)a(2)a(3) = 166375 = 55^3, 16637534623551127976881 = 359147^4.
a(1) = 1, a(1)a(2) = 16 = 4^2, a(1)a(2)a(3) = 166375 = 55^3, 166375642922965550370816 = 638664^4.
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CROSSREFS
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Sequence in context: A111152 A003191 A000438 this_sequence A013784 A158880 A137040
Adjacent sequences: A061106 A061107 A061108 this_sequence A061110 A061111 A061112
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KEYWORD
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base,nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 20 2001
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EXTENSIONS
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Corrected and extended by Ulrich Schimke, Feb 08, 2002
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