A333920 - cp's OEIS frontend

A333920 a(n) is the least k such that the binary representation of n appears as a substring in the concatenation of the binary representations of 0, 1, ..., k.

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

[0, 1, 2, 2, 4, 3, 2, 4, 8, 5, 10, 3, 4, 3, 4, 8, 16, 9, 5, 10, 19, 11, 22, 4, 8, 5, 10, 3, 4, 7, 8, 16, 32, 17, 9, 18, 36, 5, 10, 20, 35, 19, 11, 11, 38, 22, 4, 8, 16, 9, 5, 13, 20, 11, 22, 4, 8, 5, 20, 7, 8, 15, 16, 32, 64, 33, 17, 34, 9, 35, 18, 36, 69, 37]

cp's OEIS Frontend

A333920 a(n) is the least k such that the binary representation of n appears as a substring in the concatenation of the binary representations of 0, 1, ..., k.

Table of values

List of values

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

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

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