A377483 - cp's OEIS frontend

A377483 Smallest index k such that prime(k) in base-2 contains n in base-2 as a contiguous substring.

n	a(n)
1	1
2	1
3	2
4	7
5	3
6	6
7	4
8	7
9	8
10	13
11	5
12	24
13	6
14	10
15	11
16	19
17	7
18	12
19	8
20	13
21	14
22	24
23	9
24	25
25	24
26	16
27	17
28	30
29	10
30	18
31	11
32	32
33	19
34	33
35	20
36	21
37	12
38	63
39	22
40	38
41	13
42	68
43	14
44	24
45	29
46	70
47	15
48	25
49	30
50	26
51	27
52	47
53	16
54	29
55	48
56	30
57	50
58	51
59	17
60	53
61	18
62	54
63	31
64	55
65	32
66	77
67	19
68	33
69	34
70	60
71	20
72	79

[1, 1, 2, 7, 3, 6, 4, 7, 8, 13, 5, 24, 6, 10, 11, 19, 7, 12, 8, 13, 14, 24, 9, 25, 24, 16, 17, 30, 10, 18, 11, 32, 19, 33, 20, 21, 12, 63, 22, 38, 13, 68, 14, 24, 29, 70, 15, 25, 30, 26, 27, 47, 16, 29, 48, 30, 50, 51, 17, 53, 18, 54, 31, 55, 32, 77, 19, 33, 34, 60, 20, 79]

cp's OEIS Frontend

A377483 Smallest index k such that prime(k) in base-2 contains n in base-2 as a contiguous substring.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	7
5	3
6	6
7	4
8	7
9	8
10	13
11	5
12	24
13	6
14	10
15	11
16	19
17	7
18	12
19	8
20	13
21	14
22	24
23	9
24	25
25	24
26	16
27	17
28	30
29	10
30	18
31	11
32	32
33	19
34	33
35	20
36	21
37	12
38	63
39	22
40	38
41	13
42	68
43	14
44	24
45	29
46	70
47	15
48	25
49	30
50	26
51	27
52	47
53	16
54	29
55	48
56	30
57	50
58	51
59	17
60	53
61	18
62	54
63	31
64	55
65	32
66	77
67	19
68	33
69	34
70	60
71	20
72	79

n	a(n)
1	1
2	1
3	2
4	7
5	3
6	6
7	4
8	7
9	8
10	13
11	5
12	24
13	6
14	10
15	11
16	19
17	7
18	12
19	8
20	13
21	14
22	24
23	9
24	25
25	24
26	16
27	17
28	30
29	10
30	18
31	11
32	32
33	19
34	33
35	20
36	21
37	12
38	63
39	22
40	38
41	13
42	68
43	14
44	24
45	29
46	70
47	15
48	25
49	30
50	26
51	27
52	47
53	16
54	29
55	48
56	30
57	50
58	51
59	17
60	53
61	18
62	54
63	31
64	55
65	32
66	77
67	19
68	33
69	34
70	60
71	20
72	79

n	a(n)
1	1
2	1
3	2
4	7
5	3
6	6
7	4
8	7
9	8
10	13
11	5
12	24
13	6
14	10
15	11
16	19
17	7
18	12
19	8
20	13
21	14
22	24
23	9
24	25
25	24
26	16
27	17
28	30
29	10
30	18
31	11
32	32
33	19
34	33
35	20
36	21
37	12
38	63
39	22
40	38
41	13
42	68
43	14
44	24
45	29
46	70
47	15
48	25
49	30
50	26
51	27
52	47
53	16
54	29
55	48
56	30
57	50
58	51
59	17
60	53
61	18
62	54
63	31
64	55
65	32
66	77
67	19
68	33
69	34
70	60
71	20
72	79