A140977 - cp's OEIS frontend

A140977 a(n) is the smallest integer > n that has the same number of (nonleading) zeros in its binary representation as n has.

n	a(n)
1	3
2	5
3	7
4	9
5	6
6	11
7	15
8	17
9	10
10	12
11	13
12	19
13	14
14	23
15	31
16	33
17	18
18	20
19	21
20	24
21	22
22	25
23	27
24	35
25	26
26	28
27	29
28	39
29	30
30	47
31	63
32	65
33	34
34	36
35	37
36	40
37	38
38	41
39	43
40	48
41	42
42	44
43	45
44	49
45	46
46	51
47	55
48	67
49	50
50	52
51	53
52	56
53	54
54	57
55	59
56	71
57	58
58	60
59	61
60	79
61	62
62	95
63	127
64	129
65	66
66	68
67	69
68	72
69	70
70	73
71	75

[3, 5, 7, 9, 6, 11, 15, 17, 10, 12, 13, 19, 14, 23, 31, 33, 18, 20, 21, 24, 22, 25, 27, 35, 26, 28, 29, 39, 30, 47, 63, 65, 34, 36, 37, 40, 38, 41, 43, 48, 42, 44, 45, 49, 46, 51, 55, 67, 50, 52, 53, 56, 54, 57, 59, 71, 58, 60, 61, 79, 62, 95, 127, 129, 66, 68, 69, 72, 70, 73, 75]

cp's OEIS Frontend

A140977 a(n) is the smallest integer > n that has the same number of (nonleading) zeros in its binary representation as n has.

Table of values

List of values

n	a(n)
1	3
2	5
3	7
4	9
5	6
6	11
7	15
8	17
9	10
10	12
11	13
12	19
13	14
14	23
15	31
16	33
17	18
18	20
19	21
20	24
21	22
22	25
23	27
24	35
25	26
26	28
27	29
28	39
29	30
30	47
31	63
32	65
33	34
34	36
35	37
36	40
37	38
38	41
39	43
40	48
41	42
42	44
43	45
44	49
45	46
46	51
47	55
48	67
49	50
50	52
51	53
52	56
53	54
54	57
55	59
56	71
57	58
58	60
59	61
60	79
61	62
62	95
63	127
64	129
65	66
66	68
67	69
68	72
69	70
70	73
71	75

n	a(n)
1	3
2	5
3	7
4	9
5	6
6	11
7	15
8	17
9	10
10	12
11	13
12	19
13	14
14	23
15	31
16	33
17	18
18	20
19	21
20	24
21	22
22	25
23	27
24	35
25	26
26	28
27	29
28	39
29	30
30	47
31	63
32	65
33	34
34	36
35	37
36	40
37	38
38	41
39	43
40	48
41	42
42	44
43	45
44	49
45	46
46	51
47	55
48	67
49	50
50	52
51	53
52	56
53	54
54	57
55	59
56	71
57	58
58	60
59	61
60	79
61	62
62	95
63	127
64	129
65	66
66	68
67	69
68	72
69	70
70	73
71	75

n	a(n)
1	3
2	5
3	7
4	9
5	6
6	11
7	15
8	17
9	10
10	12
11	13
12	19
13	14
14	23
15	31
16	33
17	18
18	20
19	21
20	24
21	22
22	25
23	27
24	35
25	26
26	28
27	29
28	39
29	30
30	47
31	63
32	65
33	34
34	36
35	37
36	40
37	38
38	41
39	43
40	48
41	42
42	44
43	45
44	49
45	46
46	51
47	55
48	67
49	50
50	52
51	53
52	56
53	54
54	57
55	59
56	71
57	58
58	60
59	61
60	79
61	62
62	95
63	127
64	129
65	66
66	68
67	69
68	72
69	70
70	73
71	75