This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A234861 #5 Jan 05 2014 05:59:38
%S A234861 0,7,15,10,33,48,24,80,22,40,33,168,66,224,250,28,309,24,132,440,470,
%T A234861 23,99,624,43,61,772,274,89,55,341,189,1125,411,129,86,79,1520,251,
%U A234861 563,1730,193,643,333,141,118,123,241,67,2558,393,939,431,3024,97,150
%N A234861 Sum of the distinct prime divisors of n^3 - 1.
%H A234861 Vincenzo Librandi, <a href="/A234861/b234861.txt">Table of n, a(n) for n = 1..1000</a>
%e A234861 a(3) = 15 because 3^3-1 = 26 and the sum of the 2 distinct prime divisors {2, 13} is 15.
%t A234861 Table[Total[Transpose[FactorInteger[n^3 - 1]][[1]]], {n, 50}]
%Y A234861 Cf. A062835.
%K A234861 nonn
%O A234861 1,2
%A A234861 _Vincenzo Librandi_, Jan 01 2014