Number of different initial values for 3x+1 trajectories started with initial values not exceeding 2^n and in which the peak values are larger than 2^n.
A095383
Number of different initial values for 3x+1 trajectories started with initial values not exceeding 2^n and in which the peak values are larger than 2^n.
Terms
- a(0) =0a(1) =1a(2) =4a(3) =6a(4) =19a(5) =31a(6) =73a(7) =144a(8) =331a(9) =672a(10) =1468a(11) =3024a(12) =6065a(13) =9592a(14) =19701a(15) =39630a(16) =79625a(17) =157569a(18) =316139a(19) =632655a(20) =1264043a(21) =2532963a(22) =5060484a(23) =10128862a(24) =20270752a(25) =40575156a(26) =81134041a(27) =162268825a(28) =324627203a(29) =649177198
External references
- oeis: A095383