Composite squarefree numbers n such that p + tau(n) divides n - phi(n), where p are the prime factors of n, tau(n) = A000005(n) and phi(n) = A000010(n).
A229324
Composite squarefree numbers n such that p + tau(n) divides n - phi(n), where p are the prime factors of n, tau(n) = A000005(n) and phi(n) = A000010(n).
Terms
- a(0) =115a(1) =205a(2) =295a(3) =565a(4) =655a(5) =745a(6) =835a(7) =1195a(8) =1285a(9) =1465a(10) =1555a(11) =1735a(12) =1915a(13) =2005a(14) =2095a(15) =2455a(16) =2545a(17) =2815a(18) =2995a(19) =3085a(20) =3265a(21) =3715a(22) =3805a(23) =3985a(24) =4435a(25) =4705a(26) =4885a(27) =5065a(28) =5155a(29) =5245
External references
- oeis: A229324