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10, 101, 1011, 10111, 101111, 10111111, 101111111, 1011111111111, 10111111111111111111, 101111111111111111111111111111111111, 1011111111111111111111111111111111111111
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OFFSET
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1,1
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COMMENTS
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Primes of the form 10, 101, 1011, 10111,..
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LINKS
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FORMULA
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EXAMPLE
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a(12)=101111111111111111111111111111111111111111111.
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MATHEMATICA
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FromDigits/@Select[Table[PadRight[{1, 0}, n, 1], {n, 0, 50}], PrimeQ[ FromDigits[ #, 2]]&] (* Harvey P. Dale, Nov 12 2011 *)
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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