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Search: id:A123138
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| A123138 |
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The n-th digit of a(n-1) gives the position of digit n in a(n), a(1)=263514. |
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+0
1
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| 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Sequence is periodic with period 2. - Charles R Greathouse IV Jul 27 2009
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LINKS
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A. Frank & P. Jacqueroux, International Contest, 2001. Item 29
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FORMULA
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a(n)=388578+125064*(-1)^n, with n>=1 [From Paolo P. Lava (ppl(AT)spl.at), Aug 04 2009]
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EXAMPLE
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Since a(1)=263514, the '2'nd digit of a(2) is 1, the '6-th digit is 2, the '3'rd digit is 3, the '5-th digit 4, the '1'st digit is 5 and the '4-th digit is 6.
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CROSSREFS
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Cf. A123155
Sequence in context: A013966 A036096 A033982 this_sequence A098188 A095974 A022202
Adjacent sequences: A123135 A123136 A123137 this_sequence A123139 A123140 A123141
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KEYWORD
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nonn,base
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AUTHOR
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Herman Jamke (hermanjamke(AT)fastmail.fm), Sep 30 2006
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