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A102256
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Begin with 1, multiply each digit by 2, separate the digits.
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0
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1, 2, 4, 8, 1, 6, 2, 1, 2, 4, 2, 4, 8, 4, 8, 1, 6, 8, 1, 6, 2, 1, 2, 1, 6, 2, 1, 2, 4, 2, 4, 2, 1, 2, 4, 2, 4, 8, 4, 8, 4, 2, 4, 8, 4, 8, 1, 6, 8, 1, 6, 8, 4, 8, 1, 6, 8, 1, 6, 2, 1, 2, 1, 6, 2, 1, 2, 1, 6, 8, 1, 6, 2, 1, 2, 1, 6, 2, 1, 2, 4, 2, 4, 2, 1, 2, 4, 2, 4, 2, 1, 2, 1, 6, 2, 1, 2, 4, 2, 4, 2, 1, 2, 4, 2
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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Read a(4)=8 which produces, doing 8*2=16 ["1" & "6"], a(5)=1 & a(6)=6.
Now read a(5)=1 which produces [a(6) is already written] a(7)=2 because 1*2=2.
Now read a(6)=6 which produces [a(7) is already written] a(8)=1 & a(9)=2 because 6*2=12 ["1" & "2"].
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MATHEMATICA
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Flatten[ NestList[ Function[x, Flatten[ IntegerDigits[ 2IntegerDigits[ x]]]], 1, 14]] (* Robert G. Wilson v, Feb 21 2005 *)
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CROSSREFS
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KEYWORD
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base,easy,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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