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Search: id:A051027
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A051027 a(n) = sigma(sigma(n)) = sum of the divisors of the sum of the divisors of n. +0
16
1, 4, 7, 8, 12, 28, 15, 24, 14, 39, 28, 56, 24, 60, 60, 32, 39, 56, 42, 96, 63, 91, 60, 168, 32, 96, 90, 120, 72, 195, 63, 104, 124, 120, 124, 112, 60, 168, 120, 234, 96, 252, 84, 224, 168, 195, 124, 224, 80, 128, 195, 171, 120, 360, 195, 360, 186, 234, 168, 480, 96 (list; graph; listen)
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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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