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A141546 Numbers n whose abundance is 14. 1
272, 7232, 30848, 516608, 134094848, 2146992128 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(7) > 10^12. - Donovan Johnson, Dec 08 2011

a(7) > 10^13. - Giovanni Resta, Mar 29 2013

LINKS

Table of n, a(n) for n=1..6.

MATHEMATICA

lst={}; Do[If[n==Plus@@Divisors[n]-n-14, AppendTo[lst, n]], {n, 10^4}]; Print[lst];

lst = {}; Do[ If[2 n + 14 == DivisorSigma[1, n], AppendTo[lst, n]], {n, 2 10^8, 2}]; lst - Robert G. Wilson, v, Aug 17 2008

CROSSREFS

Sequence in context: A158587 A178268 A205345 * A000517 A168372 A023907

Adjacent sequences:  A141543 A141544 A141545 * A141547 A141548 A141549

KEYWORD

nonn

AUTHOR

Vladimir Joseph Stephan Orlovsky, Aug 16 2008

EXTENSIONS

a(5)-a(6) from Donovan Johnson, Dec 21 2008

STATUS

approved

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Last modified May 25 23:56 EDT 2013. Contains 225650 sequences.