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%I A234646 #5 Jan 05 2014 05:59:20
%S A234646 0,2,3,9,18,12,38,45,22,80,31,42,39,166,69,213,258,25,326,14,137,434,
%T A234646 486,18,91,616,41,65,786,281,111,28,345,177,1135,402,147,95,90,1490,
%U A234646 271,559,1766,165,639,315,175,115,105,201,82,2566,439,924,432,2980,114
%N A234646 Sum of the distinct prime divisors of n^3 + 1.
%H A234646 Vincenzo Librandi, <a href="/A234646/b234646.txt">Table of n, a(n) for n = 0..1000</a>
%e A234646 a(3) = 9 because 3^3+1 = 28 and the sum of the 2 distinct prime divisors {2, 7} is 9.
%t A234646 Join[{0}, Table[Total[Transpose[FactorInteger[n^3 + 1]][[1]]], {n, 60}]]
%Y A234646 Cf. A193462.
%K A234646 nonn
%O A234646 0,2
%A A234646 _Vincenzo Librandi_, Jan 01 2014

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