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A153475
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Sum of the first n even superperfect numbers (A061652).
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3
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2, 6, 22, 86, 4182, 69718, 331862, 1074073686, 1152921505680920662, 309485010974266574405701718, 81129947899617655962363410845782, 85070672860182515483499614221352898646
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OFFSET
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1,1
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COMMENTS
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Also, sum of first n superperfect numbers A019279, if there are no odd superperfect numbers.
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LINKS
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FORMULA
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CROSSREFS
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KEYWORD
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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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