Number of different initial values for 3x+1 trajectories started with initial values not exceeding 2^n and in which the peak values are also not larger than 2^n.
A095384
Number of different initial values for 3x+1 trajectories started with initial values not exceeding 2^n and in which the peak values are also not larger than 2^n.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =4a(4) =10a(5) =13a(6) =33a(7) =55a(8) =112a(9) =181a(10) =352a(11) =580a(12) =1072a(13) =2127a(14) =6792a(15) =13067a(16) =25906a(17) =51447a(18) =104575a(19) =208149a(20) =415921a(21) =833109a(22) =1661341a(23) =3328124a(24) =6648354a(25) =13283680a(26) =26533708a(27) =53083687a(28) =106166631a(29) =212243709
External references
- oeis: A095384