Consider iteration of the function f(x) = phi(sigma(x)) = A062401(x). Sequence gives numbers n such that the trajectory of n returns to n.

A096850

Consider iteration of the function f(x) = phi(sigma(x)) = A062401(x). Sequence gives numbers n such that the trajectory of n returns to n.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =6a(4) =8a(5) =12a(6) =16a(7) =24a(8) =30a(9) =48a(10) =60a(11) =72a(12) =96a(13) =128a(14) =240a(15) =432a(16) =480a(17) =576a(18) =720a(19) =864a(20) =1200a(21) =1280a(22) =1512a(23) =1536a(24) =1728a(25) =1800a(26) =1860a(27) =2016a(28) =2560a(29) =2880

External references