Numbers x such that there exist three integers 0<x<=y, z>0 and w>0 such that sigma(x)^3 = sigma(y)^3 = x^3 + y^3 + z^3 + w^3.

A385397

Numbers x such that there exist three integers 0<x<=y, z>0 and w>0 such that sigma(x)^3 = sigma(y)^3 = x^3 + y^3 + z^3 + w^3.

Terms

    a(0) =153a(1) =216a(2) =255a(3) =324a(4) =672a(5) =735a(6) =1074a(7) =1170a(8) =1218a(9) =2430a(10) =2655a(11) =2736a(12) =3482a(13) =4148a(14) =4605a(15) =4935a(16) =5220a(17) =5446a(18) =5916a(19) =6048a(20) =7140a(21) =9340a(22) =11000a(23) =11160a(24) =12768a(25) =14090a(26) =14098a(27) =14980a(28) =17220a(29) =17696

External references