Numbers m such that the set of distinct prime divisors of m is equal to the set of distinct prime divisors of the arithmetic derivative m'.
A201009
Numbers m such that the set of distinct prime divisors of m is equal to the set of distinct prime divisors of the arithmetic derivative m'.
Terms
- a(0) =1a(1) =4a(2) =16a(3) =27a(4) =108a(5) =144a(6) =256a(7) =432a(8) =500a(9) =784a(10) =972a(11) =1323a(12) =1728a(13) =2700a(14) =2916a(15) =3125a(16) =3456a(17) =5292a(18) =8788a(19) =11664a(20) =12500a(21) =13068a(22) =15376a(23) =16875a(24) =19683a(25) =20736a(26) =23328a(27) =25000a(28) =27648a(29) =28125
External references
- oeis: A201009