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).
A229323
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) =6a(1) =10a(2) =15a(3) =21a(4) =42a(5) =28101a(6) =38505a(7) =5298186a(8) =8022111a(9) =28231629a(10) =36367086a(11) =98671659a(12) =132798279a(13) =163143714a(14) =201713946a(15) =251860911a(16) =434246667a(17) =537424773a(18) =968870877a(19) =999640581a(20) =1495625721a(21) =1548129363a(22) =3338717307a(23) =3836384682a(24) =6316358811a(25) =6982412973
External references
- oeis: A229323