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Numbers n such that the sum of composites from the smallest prime factor of n to the largest prime factor of n is equal to the sum of squarefree numbers from the smallest prime factor of n to the largest prime factor of n.
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%I #8 Dec 15 2017 17:36:01

%S 1,1147,3953,5609,7387,35557,42439,55189,64507,70747,198907,233227,

%T 239117,241133,264851,348091,372091,398239,409457,431633,443111,

%U 568507,613121,657443,988027,1071209,1102267,1136347,1315609,1416091,1570243

%N Numbers n such that the sum of composites from the smallest prime factor of n to the largest prime factor of n is equal to the sum of squarefree numbers from the smallest prime factor of n to the largest prime factor of n.

%e 1147 = 31*37; sum of composites between 31 and 37 is: 32+33+34+35+36 = 170 and sum of squarefree numbers between 31 and 37 is: 31+33+34+35+37 = 170.

%K nonn

%O 1,2

%A _Jason Earls_, Sep 20 2002

%E a(7)-a(31) from _Donovan Johnson_, Oct 12 2008