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A132930
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Concatenation of first n elements of the sigma function, where sigma(n) is the sum of divisors of n.
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0
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1, 13, 134, 1347, 13476, 1347612, 13476128, 1347612815, 134761281513, 13476128151318, 1347612815131812, 134761281513181228, 13476128151318122814, 1347612815131812281424, 134761281513181228142424
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OFFSET
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1,2
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LINKS
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CROSSREFS
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KEYWORD
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easy,nonn,base
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AUTHOR
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STATUS
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approved
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