A143071 - cp's OEIS frontend

A143071 A positive integer n is included if the number of 1's in the binary representation of n is a power of 2 (including being possibly 1).

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	12
11	15
12	16
13	17
14	18
15	20
16	23
17	24
18	27
19	29
20	30
21	32
22	33
23	34
24	36
25	39
26	40
27	43
28	45
29	46
30	48
31	51
32	53
33	54
34	57
35	58
36	60
37	64
38	65
39	66
40	68
41	71
42	72
43	75
44	77
45	78
46	80
47	83
48	85
49	86
50	89
51	90
52	92
53	96
54	99
55	101
56	102
57	105
58	106
59	108
60	113
61	114
62	116
63	120
64	128
65	129
66	130
67	132
68	135

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 23, 24, 27, 29, 30, 32, 33, 34, 36, 39, 40, 43, 45, 46, 48, 51, 53, 54, 57, 58, 60, 64, 65, 66, 68, 71, 72, 75, 77, 78, 80, 83, 85, 86, 89, 90, 92, 96, 99, 101, 102, 105, 106, 108, 113, 114, 116, 120, 128, 129, 130, 132, 135]

cp's OEIS Frontend

A143071 A positive integer n is included if the number of 1's in the binary representation of n is a power of 2 (including being possibly 1).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	12
11	15
12	16
13	17
14	18
15	20
16	23
17	24
18	27
19	29
20	30
21	32
22	33
23	34
24	36
25	39
26	40
27	43
28	45
29	46
30	48
31	51
32	53
33	54
34	57
35	58
36	60
37	64
38	65
39	66
40	68
41	71
42	72
43	75
44	77
45	78
46	80
47	83
48	85
49	86
50	89
51	90
52	92
53	96
54	99
55	101
56	102
57	105
58	106
59	108
60	113
61	114
62	116
63	120
64	128
65	129
66	130
67	132
68	135

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	12
11	15
12	16
13	17
14	18
15	20
16	23
17	24
18	27
19	29
20	30
21	32
22	33
23	34
24	36
25	39
26	40
27	43
28	45
29	46
30	48
31	51
32	53
33	54
34	57
35	58
36	60
37	64
38	65
39	66
40	68
41	71
42	72
43	75
44	77
45	78
46	80
47	83
48	85
49	86
50	89
51	90
52	92
53	96
54	99
55	101
56	102
57	105
58	106
59	108
60	113
61	114
62	116
63	120
64	128
65	129
66	130
67	132
68	135

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	12
11	15
12	16
13	17
14	18
15	20
16	23
17	24
18	27
19	29
20	30
21	32
22	33
23	34
24	36
25	39
26	40
27	43
28	45
29	46
30	48
31	51
32	53
33	54
34	57
35	58
36	60
37	64
38	65
39	66
40	68
41	71
42	72
43	75
44	77
45	78
46	80
47	83
48	85
49	86
50	89
51	90
52	92
53	96
54	99
55	101
56	102
57	105
58	106
59	108
60	113
61	114
62	116
63	120
64	128
65	129
66	130
67	132
68	135