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A137599
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Numbers n such that sigma(n)=reversal(n)-1.
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1
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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sigma(75018277)=77281056=77281057-1=reversal(75018277)-1, so 75018277 is in the sequence.
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MATHEMATICA
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Do[If[DivisorSigma[1, n]==FromDigits@Reverse@IntegerDigits@n-1, Print[n]], {n, 1553000000}]
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CROSSREFS
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KEYWORD
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base,more,nonn,bref
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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