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Mathematics of Computation

Published by the American Mathematical Society since 1960 (published as Mathematical Tables and other Aids to Computation 1943-1959), Mathematics of Computation is devoted to research articles of the highest quality in computational mathematics.

ISSN 1088-6842 (online) ISSN 0025-5718 (print)

The 2020 MCQ for Mathematics of Computation is 1.78.

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Corrigendum to: “What drives an aliquot sequence?” [Math. Comp. 29 (1975), 101–107; MR 52 #5542]
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by Richard K. Guy and J. L. Selfridge PDF
Math. Comp. 34 (1980), 319-321 Request permission

Abstract:

An aliquot sequence $n:k$, $k = 0,1,2, \ldots$, is defined by $n:0 = n,$, $n:k + 1 = \sigma (n:k) - n:k$, and a driver of an aliquot sequence is a number ${2^A}\upsilon$ with $A > 0$, $\upsilon$ odd, $\upsilon |{2^{A + 1}} - 1$ and ${2^{A - 1}}|\sigma (\upsilon )$. Pollard has noted some errors in a proof in [1] that the drivers comprise the even perfect numbers and a finite set. These are now corrected in a revised proof.
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Additional Information
  • © Copyright 1980 American Mathematical Society
  • Journal: Math. Comp. 34 (1980), 319-321
  • MSC: Primary 10A20; Secondary 10L10
  • DOI: https://doi.org/10.1090/S0025-5718-1980-0551309-8
  • MathSciNet review: 551309