A073642 - cp's OEIS frontend

A073642 Replace 2^k in the binary representation of n with k (i.e., if n = 2^b + 2^c + 2^d + ... then a(n) = b + c + d + ...).

n	a(n)
0	0
1	0
2	1
3	1
4	2
5	2
6	3
7	3
8	3
9	3
10	4
11	4
12	5
13	5
14	6
15	6
16	4
17	4
18	5
19	5
20	6
21	6
22	7
23	7
24	7
25	7
26	8
27	8
28	9
29	9
30	10
31	10
32	5
33	5
34	6
35	6
36	7
37	7
38	8
39	8
40	8
41	8
42	9
43	9
44	10
45	10
46	11
47	11
48	9
49	9
50	10
51	10
52	11
53	11
54	12
55	12
56	12
57	12
58	13
59	13
60	14
61	14
62	15
63	15
64	6
65	6
66	7
67	7
68	8
69	8
70	9
71	9
72	9
73	9
74	10
75	10
76	11
77	11
78	12
79	12
80	10
81	10
82	11
83	11
84	12
85	12
86	13
87	13

[0, 0, 1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 5, 5, 6, 6, 4, 4, 5, 5, 6, 6, 7, 7, 7, 7, 8, 8, 9, 9, 10, 10, 5, 5, 6, 6, 7, 7, 8, 8, 8, 8, 9, 9, 10, 10, 11, 11, 9, 9, 10, 10, 11, 11, 12, 12, 12, 12, 13, 13, 14, 14, 15, 15, 6, 6, 7, 7, 8, 8, 9, 9, 9, 9, 10, 10, 11, 11, 12, 12, 10, 10, 11, 11, 12, 12, 13, 13]

cp's OEIS Frontend

A073642 Replace 2^k in the binary representation of n with k (i.e., if n = 2^b + 2^c + 2^d + ... then a(n) = b + c + d + ...).

Table of values

List of values

n	a(n)
0	0
1	0
2	1
3	1
4	2
5	2
6	3
7	3
8	3
9	3
10	4
11	4
12	5
13	5
14	6
15	6
16	4
17	4
18	5
19	5
20	6
21	6
22	7
23	7
24	7
25	7
26	8
27	8
28	9
29	9
30	10
31	10
32	5
33	5
34	6
35	6
36	7
37	7
38	8
39	8
40	8
41	8
42	9
43	9
44	10
45	10
46	11
47	11
48	9
49	9
50	10
51	10
52	11
53	11
54	12
55	12
56	12
57	12
58	13
59	13
60	14
61	14
62	15
63	15
64	6
65	6
66	7
67	7
68	8
69	8
70	9
71	9
72	9
73	9
74	10
75	10
76	11
77	11
78	12
79	12
80	10
81	10
82	11
83	11
84	12
85	12
86	13
87	13

n	a(n)
0	0
1	0
2	1
3	1
4	2
5	2
6	3
7	3
8	3
9	3
10	4
11	4
12	5
13	5
14	6
15	6
16	4
17	4
18	5
19	5
20	6
21	6
22	7
23	7
24	7
25	7
26	8
27	8
28	9
29	9
30	10
31	10
32	5
33	5
34	6
35	6
36	7
37	7
38	8
39	8
40	8
41	8
42	9
43	9
44	10
45	10
46	11
47	11
48	9
49	9
50	10
51	10
52	11
53	11
54	12
55	12
56	12
57	12
58	13
59	13
60	14
61	14
62	15
63	15
64	6
65	6
66	7
67	7
68	8
69	8
70	9
71	9
72	9
73	9
74	10
75	10
76	11
77	11
78	12
79	12
80	10
81	10
82	11
83	11
84	12
85	12
86	13
87	13

n	a(n)
0	0
1	0
2	1
3	1
4	2
5	2
6	3
7	3
8	3
9	3
10	4
11	4
12	5
13	5
14	6
15	6
16	4
17	4
18	5
19	5
20	6
21	6
22	7
23	7
24	7
25	7
26	8
27	8
28	9
29	9
30	10
31	10
32	5
33	5
34	6
35	6
36	7
37	7
38	8
39	8
40	8
41	8
42	9
43	9
44	10
45	10
46	11
47	11
48	9
49	9
50	10
51	10
52	11
53	11
54	12
55	12
56	12
57	12
58	13
59	13
60	14
61	14
62	15
63	15
64	6
65	6
66	7
67	7
68	8
69	8
70	9
71	9
72	9
73	9
74	10
75	10
76	11
77	11
78	12
79	12
80	10
81	10
82	11
83	11
84	12
85	12
86	13
87	13