Largest squarefree number dividing sum of cubes of divisors of n.

Terms

a(0) =1a(1) =3a(2) =14a(3) =73a(4) =42a(5) =42a(6) =86a(7) =195a(8) =757a(9) =42a(10) =222a(11) =1022a(12) =2198a(13) =258a(14) =42a(15) =4681a(16) =546a(17) =2271a(18) =70a(19) =3066a(20) =602a(21) =222a(22) =78a(23) =2730a(24) =15751a(25) =6594a(26) =5110a(27) =6278a(28) =8130a(29) =42