A179821 - cp's OEIS frontend

A179821 In binary representation of n: replace all blocks of k contiguous ones with binary representation of k.

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

[0, 1, 2, 2, 4, 5, 4, 3, 8, 9, 10, 10, 8, 9, 6, 4, 16, 17, 18, 18, 20, 21, 20, 11, 16, 17, 18, 18, 12, 13, 8, 5, 32, 33, 34, 34, 36, 37, 36, 19, 40, 41, 42, 42, 40, 41, 22, 20, 32, 33, 34, 34, 36, 37, 36, 19, 24, 25, 26, 26, 16, 17, 10, 6, 64, 65, 66, 66, 68, 69, 68, 35, 72, 73, 74, 74]

cp's OEIS Frontend

A179821 In binary representation of n: replace all blocks of k contiguous ones with binary representation of k.

Table of values

List of values

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

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

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