A326675 - cp's OEIS frontend

A326675 The positions of 1's in the reversed binary expansion of n are pairwise coprime, where a singleton is not coprime unless it is {1}.

n	a(n)
1	1
2	3
3	5
4	6
5	7
6	9
7	12
8	13
9	17
10	18
11	19
12	20
13	21
14	22
15	23
16	24
17	25
18	28
19	29
20	33
21	48
22	49
23	65
24	66
25	67
26	68
27	69
28	70
29	71
30	72
31	73
32	76
33	77
34	80
35	81
36	82
37	83
38	84
39	85
40	86
41	87
42	88
43	89
44	92
45	93
46	96
47	97
48	112
49	113
50	129
51	132
52	133
53	144
54	145
55	148
56	149
57	192
58	193
59	196
60	197
61	208
62	209
63	212

[1, 3, 5, 6, 7, 9, 12, 13, 17, 18, 19, 20, 21, 22, 23, 24, 25, 28, 29, 33, 48, 49, 65, 66, 67, 68, 69, 70, 71, 72, 73, 76, 77, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 92, 93, 96, 97, 112, 113, 129, 132, 133, 144, 145, 148, 149, 192, 193, 196, 197, 208, 209, 212]

cp's OEIS Frontend

A326675 The positions of 1's in the reversed binary expansion of n are pairwise coprime, where a singleton is not coprime unless it is {1}.

Table of values

List of values

n	a(n)
1	1
2	3
3	5
4	6
5	7
6	9
7	12
8	13
9	17
10	18
11	19
12	20
13	21
14	22
15	23
16	24
17	25
18	28
19	29
20	33
21	48
22	49
23	65
24	66
25	67
26	68
27	69
28	70
29	71
30	72
31	73
32	76
33	77
34	80
35	81
36	82
37	83
38	84
39	85
40	86
41	87
42	88
43	89
44	92
45	93
46	96
47	97
48	112
49	113
50	129
51	132
52	133
53	144
54	145
55	148
56	149
57	192
58	193
59	196
60	197
61	208
62	209
63	212

n	a(n)
1	1
2	3
3	5
4	6
5	7
6	9
7	12
8	13
9	17
10	18
11	19
12	20
13	21
14	22
15	23
16	24
17	25
18	28
19	29
20	33
21	48
22	49
23	65
24	66
25	67
26	68
27	69
28	70
29	71
30	72
31	73
32	76
33	77
34	80
35	81
36	82
37	83
38	84
39	85
40	86
41	87
42	88
43	89
44	92
45	93
46	96
47	97
48	112
49	113
50	129
51	132
52	133
53	144
54	145
55	148
56	149
57	192
58	193
59	196
60	197
61	208
62	209
63	212

n	a(n)
1	1
2	3
3	5
4	6
5	7
6	9
7	12
8	13
9	17
10	18
11	19
12	20
13	21
14	22
15	23
16	24
17	25
18	28
19	29
20	33
21	48
22	49
23	65
24	66
25	67
26	68
27	69
28	70
29	71
30	72
31	73
32	76
33	77
34	80
35	81
36	82
37	83
38	84
39	85
40	86
41	87
42	88
43	89
44	92
45	93
46	96
47	97
48	112
49	113
50	129
51	132
52	133
53	144
54	145
55	148
56	149
57	192
58	193
59	196
60	197
61	208
62	209
63	212