Numbers k whose trajectory in the Collatz (or '3x+1') problem includes another multiple of k.

A303698

Numbers k whose trajectory in the Collatz (or '3x+1') problem includes another multiple of k.

Terms

    a(0) =31a(1) =62a(2) =83a(3) =166a(4) =293a(5) =347a(6) =586a(7) =671a(8) =694a(9) =1342a(10) =2684a(11) =19151a(12) =38302a(13) =2025797a(14) =4051594

External references