Odd squarefree composite numbers k, divisible by the sum of their prime factors, sopfr (A001414).
A308643
Odd squarefree composite numbers k, divisible by the sum of their prime factors, sopfr (A001414).
Terms
- a(0) =105a(1) =231a(2) =627a(3) =805a(4) =897a(5) =1581a(6) =2967a(7) =3055a(8) =4543a(9) =5487a(10) =6461a(11) =6745a(12) =7881a(13) =9717a(14) =10707a(15) =14231a(16) =15015a(17) =16377a(18) =21091a(19) =26331a(20) =29607a(21) =33495a(22) =33901a(23) =33915a(24) =35905a(25) =37411a(26) =38843a(27) =40587a(28) =42211a(29) =45885
External references
- oeis: A308643