A255071 - cp's OEIS frontend

A255071 Number of steps required to reach (2^n)-2 from 2^(n+1)-2 by iterating the map x -> x - (number of runs in binary representation of x).

n	a(n)
1	1
2	2
3	3
4	5
5	9
6	16
7	29
8	53
9	97
10	178
11	328
12	608
13	1134
14	2126
15	4001
16	7552
17	14292
18	27115
19	51565
20	98274
21	187657
22	358982
23	687944
24	1320793
25	2540702
26	4896919
27	9456143
28	18291753
29	35435799
30	68731296
31	133436379
32	259238717
33	503912508
34	979923792
35	1906297165
36	3709809375
37	7222584181

[1, 2, 3, 5, 9, 16, 29, 53, 97, 178, 328, 608, 1134, 2126, 4001, 7552, 14292, 27115, 51565, 98274, 187657, 358982, 687944, 1320793, 2540702, 4896919, 9456143, 18291753, 35435799, 68731296, 133436379, 259238717, 503912508, 979923792, 1906297165, 3709809375, 7222584181]

cp's OEIS Frontend

A255071 Number of steps required to reach (2^n)-2 from 2^(n+1)-2 by iterating the map x -> x - (number of runs in binary representation of x).

Table of values

List of values