A003726 - cp's OEIS frontend

A003726 Numbers with no 3 adjacent 1's in binary expansion.

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

[0, 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 16, 17, 18, 19, 20, 21, 22, 24, 25, 26, 27, 32, 33, 34, 35, 36, 37, 38, 40, 41, 42, 43, 44, 45, 48, 49, 50, 51, 52, 53, 54, 64, 65, 66, 67, 68, 69, 70, 72, 73, 74, 75, 76, 77, 80, 81, 82]

cp's OEIS Frontend

A003726 Numbers with no 3 adjacent 1's in binary expansion.

Table of values

List of values

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

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

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