Number of times when an odd number is encountered, when going from 2^(n+1)-1 to (2^n)-1 using the iterative process described in A071542.
A218543
Number of times when an odd number is encountered, when going from 2^(n+1)-1 to (2^n)-1 using the iterative process described in A071542.
Terms
- a(0) =0a(1) =1a(2) =1a(3) =2a(4) =3a(5) =6a(6) =9a(7) =18a(8) =31a(9) =54a(10) =93a(11) =167a(12) =306a(13) =574a(14) =1088a(15) =2081a(16) =3998a(17) =7696a(18) =14792a(19) =28335a(20) =54049a(21) =102742a(22) =194948a(23) =369955a(24) =703335a(25) =1340834a(26) =2563781a(27) =4915378a(28) =9444799a(29) =18180238
External references
- oeis: A218543