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Search: id:A113695
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| A113695 |
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a(1) = 1, a(2) = 2 then the least number starting with n so that every term divides the concatenation of its neighbors. |
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2
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| 1, 2, 30, 40, 520, 6120, 75080, 821920, 9125440, 1012882880, 11690270720, 127219466240, 1377297694720, 14982604718080, 1512710259671040, 16662943738757120, 178381140013219840, 18013061754595573760
(list; graph; listen)
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OFFSET
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1,2
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EXAMPLE
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a(2)=2 divides the concatenated a(1)a(3)=130. a(3)=30 divides the concatenated a(2)a(4)=240. a(4)=40 divides the concatenated a(3)a(5)=30520.
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CROSSREFS
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Cf. A113696.
Sequence in context: A145290 A127026 A105962 this_sequence A098827 A078208 A105403
Adjacent sequences: A113692 A113693 A113694 this_sequence A113696 A113697 A113698
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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), Nov 11 2005
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EXTENSIONS
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Corrected and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 31 2007
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