Search: id:A074376
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%I A074376
%S A074376 0,5,12,22,35,35,70,51,51,70,176,70,247,117,92,92,425,92,532,117,145,
%T A074376 247,782,117,145,330,117,176,1247,145,1426,145,287,532,210,145,2035,
%U A074376 651,376,176,2501,210,2752,330,176,925,3290,176,287,210,590,425,4187
%N A074376 s(3s-1)/2 where s is the sum of the prime factors of n (with repetition).
%H A074376 Neville Holmes, <a href="http://www.comp.utas.edu.au/users/nholmes/sqncs/
               cmbntns.htm#A074376">Integer Sequence Combinations</a>
%e A074376 a(20) = 9(3*9-1)/2 = 117 because 9 = 2+2+5 and 20 = 2*2*5.
%Y A074376 Applies A000326 to A001414. Cf. A074373, A074374, A074375.
%Y A074376 Sequence in context: A028347 A038794 A131976 this_sequence A134340 A000326 
               A022795
%Y A074376 Adjacent sequences: A074373 A074374 A074375 this_sequence A074377 A074378 
               A074379
%K A074376 easy,nonn
%O A074376 1,2
%A A074376 Neville Holmes (neville.holmes(AT)utas.edu.au), Aug 29 2002

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