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A083373
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2n is equal to the sum of its divisors after the digits have been sorted in descending order (zeros dropped).
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0
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OFFSET
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1,1
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LINKS
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EXAMPLE
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a(3)=1212 because the divisors of 1212 are [1, 2, 3, 4, 6, 12, 101, 202, 303, 404, 606, 1212] and 1+2+3+4+6+21+11+22+33+44+66+2211 = 2424 = 2*1212.
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CROSSREFS
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KEYWORD
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base,more,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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