Composite numbers such that the square root of the sum of squares of their prime factors (with multiplicity) is an integer.
A134605
Composite numbers such that the square root of the sum of squares of their prime factors (with multiplicity) is an integer.
Terms
- a(0) =16a(1) =48a(2) =81a(3) =320a(4) =351a(5) =486a(6) =512a(7) =625a(8) =1080a(9) =1260a(10) =1350a(11) =1375a(12) =1792a(13) =1836a(14) =2070a(15) =2145a(16) =2175a(17) =2401a(18) =2730a(19) =2772a(20) =3072a(21) =3150a(22) =3510a(23) =4104a(24) =4305a(25) =4625a(26) =4650a(27) =4655a(28) =4998a(29) =5880
External references
- oeis: A134605