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Search: id:A105310
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| A105310 |
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a(n) = concatenation of i n times, with i = 1 to n. |
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+0
1
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| 1, 1122, 111222333, 1111222233334444, 1111122222333334444455555, 111111222222333333444444555555666666, 1111111222222233333334444444555555566666667777777
(list; graph; listen)
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OFFSET
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21,2
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REFERENCES
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F. Smarandache, "Properties of the numbers", Univ. of Craiova Archives, 1975; Arizona State University Special Collections, Tempe, AZ.
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LINKS
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M. L. Perez et al., eds., Smarandache Notions Journal .
Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics..
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EXAMPLE
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a(10)=concatenation of (1^10)(2^10)(3^10)...(9^10)(10^10)
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CROSSREFS
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Cf. A098129, A000461.
Adjacent sequences: A105307 A105308 A105309 this_sequence A105311 A105312 A105313
Sequence in context: A028464 A122052 A035859 this_sequence A125840 A069984 A104285
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KEYWORD
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base,easy,nonn
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AUTHOR
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Alexandre Wajnberg (alexandre.wajnberg(AT)ulb.ac.be), Apr 25 2005
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