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A132386 Sum of all n-digit superabundant numbers. +0
1
13, 180, 2460, 10500, 133560, 2827440, 27387360, 203963760, 2254412160, 19260521280 (list; graph; listen)
OFFSET

1,1

LINKS

Eric Weisstein's World of Mathematics, Superabundant Number.

EXAMPLE

Sum of all 1-digit superabundant numbers is 13.

Sum of all 2-digit superabundant numbers is 180.

Sum of all 3-digit superabundant numbers is 2460.

CROSSREFS

Cf. A004394, A002182.

Sequence in context: A065544 A096719 A109392 this_sequence A127390 A142646 A083576

Adjacent sequences: A132383 A132384 A132385 this_sequence A132387 A132388 A132389

KEYWORD

nonn,base

AUTHOR

Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Nov 07 2007

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.


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