Numbers such that the root mean cube of their prime factors is a nonprime integer (where the root mean cube of c and d is ((c^3+d^3)/2)^(1/3)).
A134613
Numbers such that the root mean cube of their prime factors is a nonprime integer (where the root mean cube of c and d is ((c^3+d^3)/2)^(1/3)).
Terms
- a(0) =1a(1) =1512a(2) =337365a(3) =375360a(4) =523809a(5) =1177176a(6) =1255254a(7) =1380918a(8) =1549431a(9) =2277345a(10) =2286144a(11) =2816883a(12) =3320713a(13) =3340428a(14) =3838185a(15) =4378333a(16) =6726969a(17) =7043655a(18) =8311212a(19) =10281284a(20) =10323390a(21) =10666227a(22) =10708544a(23) =12333468a(24) =14185724a(25) =15883803a(26) =21432000a(27) =25760763a(28) =27111825
External references
- oeis: A134613