A204908 - cp's OEIS frontend

A204908 Least k such that n divides s(k)-s(j) for some j in [1,k], where s(k) is the k-th prime >=5.

n	a(n)
1	2
2	2
3	3
4	3
5	5
6	3
7	6
8	4
9	7
10	5
11	8
12	5
13	9
14	6
15	10
16	7
17	11
18	7
19	12
20	9
21	13
22	8
23	14
24	8
25	16
26	9
27	15
28	11
29	18
30	10
31	17
32	10
33	18
34	11
35	21
36	11
37	20
38	12
39	21
40	13
41	22
42	13
43	23
44	16
45	23
46	14
47	24
48	14
49	25
50	16

[2, 2, 3, 3, 5, 3, 6, 4, 7, 5, 8, 5, 9, 6, 10, 7, 11, 7, 12, 9, 13, 8, 14, 8, 16, 9, 15, 11, 18, 10, 17, 10, 18, 11, 21, 11, 20, 12, 21, 13, 22, 13, 23, 16, 23, 14, 24, 14, 25, 16]

cp's OEIS Frontend

A204908 Least k such that n divides s(k)-s(j) for some j in [1,k], where s(k) is the k-th prime >=5.

Table of values

List of values

n	a(n)
1	2
2	2
3	3
4	3
5	5
6	3
7	6
8	4
9	7
10	5
11	8
12	5
13	9
14	6
15	10
16	7
17	11
18	7
19	12
20	9
21	13
22	8
23	14
24	8
25	16
26	9
27	15
28	11
29	18
30	10
31	17
32	10
33	18
34	11
35	21
36	11
37	20
38	12
39	21
40	13
41	22
42	13
43	23
44	16
45	23
46	14
47	24
48	14
49	25
50	16

n	a(n)
1	2
2	2
3	3
4	3
5	5
6	3
7	6
8	4
9	7
10	5
11	8
12	5
13	9
14	6
15	10
16	7
17	11
18	7
19	12
20	9
21	13
22	8
23	14
24	8
25	16
26	9
27	15
28	11
29	18
30	10
31	17
32	10
33	18
34	11
35	21
36	11
37	20
38	12
39	21
40	13
41	22
42	13
43	23
44	16
45	23
46	14
47	24
48	14
49	25
50	16

n	a(n)
1	2
2	2
3	3
4	3
5	5
6	3
7	6
8	4
9	7
10	5
11	8
12	5
13	9
14	6
15	10
16	7
17	11
18	7
19	12
20	9
21	13
22	8
23	14
24	8
25	16
26	9
27	15
28	11
29	18
30	10
31	17
32	10
33	18
34	11
35	21
36	11
37	20
38	12
39	21
40	13
41	22
42	13
43	23
44	16
45	23
46	14
47	24
48	14
49	25
50	16