Record n for the sequence A006666(n)/log(n), for n > 1; i.e., the n at which the number of steps to 1 for the halving-Collatz iteration divided by log(n) sets a new maximum.

A123481

Record n for the sequence A006666(n)/log(n), for n > 1; i.e., the n at which the number of steps to 1 for the halving-Collatz iteration divided by log(n) sets a new maximum.

Terms

    a(0) =2a(1) =3a(2) =7a(3) =9a(4) =27a(5) =230631a(6) =626331a(7) =837799a(8) =1723519a(9) =3732423a(10) =6649279a(11) =8400511a(12) =63728127

External references