Powerful numbers k that are not prime powers such that there exist no numbers m such that rad(m) | k and Omega(m) > Omega(k), where rad = A007947 and Omega = A001222.
A377591
Powerful numbers k that are not prime powers such that there exist no numbers m such that rad(m) | k and Omega(m) > Omega(k), where rad = A007947 and Omega = A001222.
Terms
- a(0) =225a(1) =675a(2) =1225a(3) =2025a(4) =3025a(5) =5929a(6) =6075a(7) =6125a(8) =8281a(9) =8575a(10) =14161a(11) =15125a(12) =18225a(13) =20449a(14) =30625a(15) =34969a(16) =41503a(17) =42875a(18) =43681a(19) =48841a(20) =54675a(21) =57967a(22) =60025a(23) =61009a(24) =64009a(25) =65219a(26) =75625a(27) =89401a(28) =99127a(29) =101761
External references
- oeis: A377591