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Search: id:A108686
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| A108686 |
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Hidden fractal sequence: increasing sequence all of whose successive digits are the digits of the "Kimberling counting digits" fractal sequence A108202, (which is built on the natural counting digits). |
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+0
2
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| 0, 10, 21, 30, 42, 51, 63, 70, 84, 92, 1501, 1613, 1720, 1834, 1942, 115510, 611176, 1183119
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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The even index digits are the digits of the "natural counting digits": 1, 2, 3, ... 8, 9, 1, 0, 1, 1, 1, 2, 1, 3 ...
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LINKS
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C. Kimberling, fractal sequences.
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EXAMPLE
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a(11)=1501 and not 150 because then the sequence grows quicker: 150 1161 31720 183419 421155 1061117 6118311 ...
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CROSSREFS
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Cf. A003602, A025480, A108202.
Sequence in context: A165403 A097386 A108685 this_sequence A078209 A042291 A041194
Adjacent sequences: A108683 A108684 A108685 this_sequence A108687 A108688 A108689
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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), Jun 18 2005
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