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A070299 Numbers n such that the equation sigma(n+x)=sigma(n-x) for x=1,2,3,4,..,n-1 has solution. +0
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19, 23, 26, 31, 34, 38, 40, 41, 49, 52, 53, 55, 61, 63, 68, 69, 73, 74, 75, 76, 80, 82, 83, 85, 91, 96, 101, 103, 104, 106, 110, 112, 113, 117, 122, 123, 126, 130, 131, 133, 136, 145, 146, 147, 148, 149, 151, 152, 155, 156, 157, 158, 160, 161, 162, 163, 164, 166 (list; graph; listen)
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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.


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