a(n) is the smallest number such that the sum of the n-th powers of its distinct prime divisors is divisible by n.
A199583
a(n) is the smallest number such that the sum of the n-th powers of its distinct prime divisors is divisible by n.
Terms
- a(0) =2a(1) =2a(2) =3a(3) =2a(4) =5a(5) =70a(6) =7a(7) =2a(8) =3a(9) =33a(10) =11a(11) =1155a(12) =13a(13) =78a(14) =26a(15) =2a(16) =17a(17) =2156564410a(18) =19a(19) =6006a(20) =26a(21) =114a(22) =23a(23) =2156564410a(24) =5a(25) =33a(26) =3a(27) =1365a(28) =29a(29) =110
External references
- oeis: A199583