Refactorable numbers k such that the number of odd divisors r is odd, the number of even divisors s is even and both r and s are divisors of k.
A120349
Refactorable numbers k such that the number of odd divisors r is odd, the number of even divisors s is even and both r and s are divisors of k.
Terms
- a(0) =36a(1) =3600a(2) =8100a(3) =10000a(4) =22500a(5) =26244a(6) =32400a(7) =90000a(8) =142884a(9) =202500a(10) =396900a(11) =518400a(12) =656100a(13) =810000a(14) =980100a(15) =1285956a(16) =1368900a(17) =1587600a(18) =1679616a(19) =2286144a(20) =2340900a(21) =2624400a(22) =2924100
External references
- oeis: A120349