A323627 - cp's OEIS frontend

A323627 For any nonnegative real number x, let f(x) be the real number obtained by replacing in the binary expansions of the integer and fractional parts of x each finite run of k consecutive equal bits b with a run of k-(-1)^k consecutive bits b; a(n) is the denominator of f(1/n).

n	a(n)
1	1
2	4
3	5
4	16
5	3
6	5
7	7
8	8
9	17
10	24
11	257
12	20
13	129
14	56
15	21
16	64
17	9
18	17
19	1025
20	12
21	15
22	257
23	2047
24	10
25	8193
26	129
27	1025
28	28
29	10923
30	21
31	31
32	32
33	65
34	72
35	87381
36	68
37	2097153
38	8200
39	16383
40	96
41	2049
42	120
43	1025
44	1028
45	5461
46	16376
47	536870911
48	80
49	33554431
50	65544
51	1365
52	516

[1, 4, 5, 16, 3, 5, 7, 8, 17, 24, 257, 20, 129, 56, 21, 64, 9, 17, 1025, 12, 15, 257, 2047, 10, 8193, 129, 1025, 28, 10923, 21, 31, 32, 65, 72, 87381, 68, 2097153, 8200, 16383, 96, 2049, 120, 1025, 1028, 5461, 16376, 536870911, 80, 33554431, 65544, 1365, 516]

cp's OEIS Frontend

A323627 For any nonnegative real number x, let f(x) be the real number obtained by replacing in the binary expansions of the integer and fractional parts of x each finite run of k consecutive equal bits b with a run of k-(-1)^k consecutive bits b; a(n) is the denominator of f(1/n).

Table of values

List of values