Even refactorable numbers k such that the number r of odd divisors of k and the number s of even divisors of k are both odd divisors of k.
A120361
Even refactorable numbers k such that the number r of odd divisors of k and the number s of even divisors of k are both odd divisors of k.
Terms
- a(0) =2a(1) =18a(2) =72a(3) =450a(4) =882a(5) =1250a(6) =2178a(7) =3042a(8) =4050a(9) =5202a(10) =6498a(11) =9522a(12) =11250a(13) =13122a(14) =15138a(15) =16200a(16) =17298a(17) =24642a(18) =30258a(19) =33282a(20) =39762a(21) =45000a(22) =50562a(23) =52488a(24) =56448a(25) =62658a(26) =64800a(27) =66978a(28) =71442a(29) =80802
External references
- oeis: A120361