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A092336
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Sum of first n perfect numbers.
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4
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6, 34, 530, 8658, 33558994, 8623428050, 146062119378, 2305843154202071506, 2658455991569831746960535770155913682, 191561942608236109953249369654135385091533091704082898
(list; graph; refs; listen; history; internal format)
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