A263017 - cp's OEIS frontend

A263017 n is the a(n)-th positive integer having its binary weight.

n	a(n)
1	1
2	2
3	1
4	3
5	2
6	3
7	1
8	4
9	4
10	5
11	2
12	6
13	3
14	4
15	1
16	5
17	7
18	8
19	5
20	9
21	6
22	7
23	2
24	10
25	8
26	9
27	3
28	10
29	4
30	5
31	1
32	6
33	11
34	12
35	11
36	13
37	12
38	13
39	6
40	14
41	14
42	15
43	7
44	16
45	8
46	9
47	2
48	15
49	17
50	18
51	10
52	19
53	11
54	12
55	3
56	20
57	13
58	14
59	4
60	15
61	5
62	6
63	1
64	7
65	16
66	17
67	21
68	18
69	22
70	23
71	16
72	19
73	24
74	25
75	17

[1, 2, 1, 3, 2, 3, 1, 4, 4, 5, 2, 6, 3, 4, 1, 5, 7, 8, 5, 9, 6, 7, 2, 10, 8, 9, 3, 10, 4, 5, 1, 6, 11, 12, 11, 13, 12, 13, 6, 14, 14, 15, 7, 16, 8, 9, 2, 15, 17, 18, 10, 19, 11, 12, 3, 20, 13, 14, 4, 15, 5, 6, 1, 7, 16, 17, 21, 18, 22, 23, 16, 19, 24, 25, 17]

cp's OEIS Frontend

A263017 n is the a(n)-th positive integer having its binary weight.

Table of values

List of values

n	a(n)
1	1
2	2
3	1
4	3
5	2
6	3
7	1
8	4
9	4
10	5
11	2
12	6
13	3
14	4
15	1
16	5
17	7
18	8
19	5
20	9
21	6
22	7
23	2
24	10
25	8
26	9
27	3
28	10
29	4
30	5
31	1
32	6
33	11
34	12
35	11
36	13
37	12
38	13
39	6
40	14
41	14
42	15
43	7
44	16
45	8
46	9
47	2
48	15
49	17
50	18
51	10
52	19
53	11
54	12
55	3
56	20
57	13
58	14
59	4
60	15
61	5
62	6
63	1
64	7
65	16
66	17
67	21
68	18
69	22
70	23
71	16
72	19
73	24
74	25
75	17

n	a(n)
1	1
2	2
3	1
4	3
5	2
6	3
7	1
8	4
9	4
10	5
11	2
12	6
13	3
14	4
15	1
16	5
17	7
18	8
19	5
20	9
21	6
22	7
23	2
24	10
25	8
26	9
27	3
28	10
29	4
30	5
31	1
32	6
33	11
34	12
35	11
36	13
37	12
38	13
39	6
40	14
41	14
42	15
43	7
44	16
45	8
46	9
47	2
48	15
49	17
50	18
51	10
52	19
53	11
54	12
55	3
56	20
57	13
58	14
59	4
60	15
61	5
62	6
63	1
64	7
65	16
66	17
67	21
68	18
69	22
70	23
71	16
72	19
73	24
74	25
75	17

n	a(n)
1	1
2	2
3	1
4	3
5	2
6	3
7	1
8	4
9	4
10	5
11	2
12	6
13	3
14	4
15	1
16	5
17	7
18	8
19	5
20	9
21	6
22	7
23	2
24	10
25	8
26	9
27	3
28	10
29	4
30	5
31	1
32	6
33	11
34	12
35	11
36	13
37	12
38	13
39	6
40	14
41	14
42	15
43	7
44	16
45	8
46	9
47	2
48	15
49	17
50	18
51	10
52	19
53	11
54	12
55	3
56	20
57	13
58	14
59	4
60	15
61	5
62	6
63	1
64	7
65	16
66	17
67	21
68	18
69	22
70	23
71	16
72	19
73	24
74	25
75	17