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%I #15 Jul 02 2015 02:41:03
%S 6,28,496,8128,130816,2096128,33550336,536854528
%N Incorrect list of perfect numbers from Robert Recorde's Whetstone of Witte.
%C In this list, only items 6, 28, 496, 8128 and 33550336 are perfect numbers.
%D Jack Williams, Robert Recorde Tudor Polymath, Expositor and Practitioner of Computation, Springer, 2011, page 176.
%H Robert Recorde, <a href="http://archive.org/details/TheWhetstoneOfWitte">The Whetstone of Witte</a>, whiche is the seconde parte of Arithmeteke: containing the extraction of rootes; the cossike practise, with the rule of equation; and the workes of Surde Nombers, London, 1557. See <a href="http://archive.org/stream/TheWhetstoneOfWitte#page/n23/mode/2up/">p. 24</a>.
%Y Cf. A000396 (perfect numbers), A079598.
%K nonn,fini,full
%O 1,1
%A _Olivier Gérard_, Nov 28 2011
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