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Search: id:A105311
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| A105311 |
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a(n) = n concatenations of numbers from 1 to n, concatenated. |
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+0
1
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| 1, 1212, 123123123, 1234123412341234, 12345123451234512345, 123456123456123456123456123456123456, 1234567123456712345671234567123456712345671234567
(list; graph; listen)
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OFFSET
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1,2
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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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CROSSREFS
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Cf. A098129, A000461.
Sequence in context: A138480 A047627 A047626 this_sequence A130680 A068783 A059287
Adjacent sequences: A105308 A105309 A105310 this_sequence A105312 A105313 A105314
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KEYWORD
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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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