A068076 - cp's OEIS frontend

A068076 Number of positive integers < n with the same number of 1's in their binary expansions as n.

n	a(n)
1	0
2	1
3	0
4	2
5	1
6	2
7	0
8	3
9	3
10	4
11	1
12	5
13	2
14	3
15	0
16	4
17	6
18	7
19	4
20	8
21	5
22	6
23	1
24	9
25	7
26	8
27	2
28	9
29	3
30	4
31	0
32	5
33	10
34	11
35	10
36	12
37	11
38	12
39	5
40	13
41	13
42	14
43	6
44	15
45	7
46	8
47	1
48	14
49	16
50	17
51	9
52	18
53	10
54	11
55	2
56	19
57	12
58	13
59	3
60	14
61	4
62	5
63	0
64	6
65	15
66	16
67	20
68	17
69	21
70	22
71	15
72	18
73	23
74	24
75	16
76	25
77	17
78	18
79	6
80	19
81	26
82	27
83	19

[0, 1, 0, 2, 1, 2, 0, 3, 3, 4, 1, 5, 2, 3, 0, 4, 6, 7, 4, 8, 5, 6, 1, 9, 7, 8, 2, 9, 3, 4, 0, 5, 10, 11, 10, 12, 11, 12, 5, 13, 13, 14, 6, 15, 7, 8, 1, 14, 16, 17, 9, 18, 10, 11, 2, 19, 12, 13, 3, 14, 4, 5, 0, 6, 15, 16, 20, 17, 21, 22, 15, 18, 23, 24, 16, 25, 17, 18, 6, 19, 26, 27, 19]

cp's OEIS Frontend

A068076 Number of positive integers < n with the same number of 1's in their binary expansions as n.

Table of values

List of values

n	a(n)
1	0
2	1
3	0
4	2
5	1
6	2
7	0
8	3
9	3
10	4
11	1
12	5
13	2
14	3
15	0
16	4
17	6
18	7
19	4
20	8
21	5
22	6
23	1
24	9
25	7
26	8
27	2
28	9
29	3
30	4
31	0
32	5
33	10
34	11
35	10
36	12
37	11
38	12
39	5
40	13
41	13
42	14
43	6
44	15
45	7
46	8
47	1
48	14
49	16
50	17
51	9
52	18
53	10
54	11
55	2
56	19
57	12
58	13
59	3
60	14
61	4
62	5
63	0
64	6
65	15
66	16
67	20
68	17
69	21
70	22
71	15
72	18
73	23
74	24
75	16
76	25
77	17
78	18
79	6
80	19
81	26
82	27
83	19

n	a(n)
1	0
2	1
3	0
4	2
5	1
6	2
7	0
8	3
9	3
10	4
11	1
12	5
13	2
14	3
15	0
16	4
17	6
18	7
19	4
20	8
21	5
22	6
23	1
24	9
25	7
26	8
27	2
28	9
29	3
30	4
31	0
32	5
33	10
34	11
35	10
36	12
37	11
38	12
39	5
40	13
41	13
42	14
43	6
44	15
45	7
46	8
47	1
48	14
49	16
50	17
51	9
52	18
53	10
54	11
55	2
56	19
57	12
58	13
59	3
60	14
61	4
62	5
63	0
64	6
65	15
66	16
67	20
68	17
69	21
70	22
71	15
72	18
73	23
74	24
75	16
76	25
77	17
78	18
79	6
80	19
81	26
82	27
83	19

n	a(n)
1	0
2	1
3	0
4	2
5	1
6	2
7	0
8	3
9	3
10	4
11	1
12	5
13	2
14	3
15	0
16	4
17	6
18	7
19	4
20	8
21	5
22	6
23	1
24	9
25	7
26	8
27	2
28	9
29	3
30	4
31	0
32	5
33	10
34	11
35	10
36	12
37	11
38	12
39	5
40	13
41	13
42	14
43	6
44	15
45	7
46	8
47	1
48	14
49	16
50	17
51	9
52	18
53	10
54	11
55	2
56	19
57	12
58	13
59	3
60	14
61	4
62	5
63	0
64	6
65	15
66	16
67	20
68	17
69	21
70	22
71	15
72	18
73	23
74	24
75	16
76	25
77	17
78	18
79	6
80	19
81	26
82	27
83	19