Search: id:A073091
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%I A073091
%S A073091 1,0,0,1,0,1,0,0,1,1,2,0,0,0,0,2,1,1,1,0,0,0,0,1,2,0,1,0,0,0,2,0,1,2,0,
%T A073091 1,0,1,0,2,0,0,1,2,1,1,0,0,3,0,2,0,0,1,0,0,2,0,0,1,0,0,0,3,0,1,2,1,2,0,
%U A073091 1,1,0,0,0,3,0,0,2,0,2,1,1,0,2,2,0,0,1,1,0,0,0,2,0,1,0,0,3,3
%N A073091 Number of ways to express n as (x^3+y^3+z^3)/(x+y+z) 1<=x<=y<=z<=n.
%o A073091 (PARI) a(n)=sum(x=1,n,sum(y=1,x,sum(z=1,y,if((x^3+y^3+z^3)/(x+y+z)-n,
               0,1))))
%Y A073091 Sequence in context: A000089 A051907 A093569 this_sequence A125250 A048113 
               A028961
%Y A073091 Adjacent sequences: A073088 A073089 A073090 this_sequence A073092 A073093 
               A073094
%K A073091 easy,nonn
%O A073091 1,11
%A A073091 Benoit Cloitre (benoit7848c(AT)orange.fr), Aug 18 2002

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