A247146 - cp's OEIS frontend

A247146 As a binary numeral, the bit 2^(m-1) of a(n) is 1 iff m is a proper divisor of n.

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	7
7	1
8	11
9	5
10	19
11	1
12	47
13	1
14	67
15	21
16	139
17	1
18	295
19	1
20	539
21	69
22	1027
23	1
24	2223
25	17
26	4099
27	261
28	8267
29	1
30	16951
31	1
32	32907
33	1029
34	65539
35	81
36	133423
37	1
38	262147
39	4101
40	524955
41	1
42	1056871
43	1
44	2098187
45	16661
46	4194307
47	1
48	8423599
49	65
50	16777747
51	65541

[0, 1, 1, 3, 1, 7, 1, 11, 5, 19, 1, 47, 1, 67, 21, 139, 1, 295, 1, 539, 69, 1027, 1, 2223, 17, 4099, 261, 8267, 1, 16951, 1, 32907, 1029, 65539, 81, 133423, 1, 262147, 4101, 524955, 1, 1056871, 1, 2098187, 16661, 4194307, 1, 8423599, 65, 16777747, 65541]

cp's OEIS Frontend

A247146 As a binary numeral, the bit 2^(m-1) of a(n) is 1 iff m is a proper divisor of n.

Table of values

List of values