A166404 - cp's OEIS frontend

A166404 Self-inverse permutation of natural numbers obtained by exchanging the run lengths of adjacent runs of ones and zeros in the binary expansion of n, starting from the most significant run of 1's. (See the example lines).

n	a(n)
0	0
1	1
2	2
3	3
4	6
5	5
6	4
7	7
8	14
9	13
10	10
11	11
12	12
13	9
14	8
15	15
16	30
17	29
18	26
19	27
20	22
21	21
22	20
23	23
24	28
25	25
26	18
27	19
28	24
29	17
30	16
31	31
32	62
33	61
34	58
35	59
36	54
37	53
38	52
39	55
40	46
41	45
42	42
43	43
44	44
45	41
46	40
47	47
48	60
49	57
50	50
51	51
52	38
53	37
54	36
55	39
56	56
57	49
58	34
59	35
60	48
61	33
62	32
63	63
64	126
65	125
66	122
67	123
68	118
69	117

[0, 1, 2, 3, 6, 5, 4, 7, 14, 13, 10, 11, 12, 9, 8, 15, 30, 29, 26, 27, 22, 21, 20, 23, 28, 25, 18, 19, 24, 17, 16, 31, 62, 61, 58, 59, 54, 53, 52, 55, 46, 45, 42, 43, 44, 41, 40, 47, 60, 57, 50, 51, 38, 37, 36, 39, 56, 49, 34, 35, 48, 33, 32, 63, 126, 125, 122, 123, 118, 117]

cp's OEIS Frontend

A166404 Self-inverse permutation of natural numbers obtained by exchanging the run lengths of adjacent runs of ones and zeros in the binary expansion of n, starting from the most significant run of 1's. (See the example lines).

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	3
4	6
5	5
6	4
7	7
8	14
9	13
10	10
11	11
12	12
13	9
14	8
15	15
16	30
17	29
18	26
19	27
20	22
21	21
22	20
23	23
24	28
25	25
26	18
27	19
28	24
29	17
30	16
31	31
32	62
33	61
34	58
35	59
36	54
37	53
38	52
39	55
40	46
41	45
42	42
43	43
44	44
45	41
46	40
47	47
48	60
49	57
50	50
51	51
52	38
53	37
54	36
55	39
56	56
57	49
58	34
59	35
60	48
61	33
62	32
63	63
64	126
65	125
66	122
67	123
68	118
69	117

n	a(n)
0	0
1	1
2	2
3	3
4	6
5	5
6	4
7	7
8	14
9	13
10	10
11	11
12	12
13	9
14	8
15	15
16	30
17	29
18	26
19	27
20	22
21	21
22	20
23	23
24	28
25	25
26	18
27	19
28	24
29	17
30	16
31	31
32	62
33	61
34	58
35	59
36	54
37	53
38	52
39	55
40	46
41	45
42	42
43	43
44	44
45	41
46	40
47	47
48	60
49	57
50	50
51	51
52	38
53	37
54	36
55	39
56	56
57	49
58	34
59	35
60	48
61	33
62	32
63	63
64	126
65	125
66	122
67	123
68	118
69	117

n	a(n)
0	0
1	1
2	2
3	3
4	6
5	5
6	4
7	7
8	14
9	13
10	10
11	11
12	12
13	9
14	8
15	15
16	30
17	29
18	26
19	27
20	22
21	21
22	20
23	23
24	28
25	25
26	18
27	19
28	24
29	17
30	16
31	31
32	62
33	61
34	58
35	59
36	54
37	53
38	52
39	55
40	46
41	45
42	42
43	43
44	44
45	41
46	40
47	47
48	60
49	57
50	50
51	51
52	38
53	37
54	36
55	39
56	56
57	49
58	34
59	35
60	48
61	33
62	32
63	63
64	126
65	125
66	122
67	123
68	118
69	117