A205685 - cp's OEIS frontend

A205685 The number j such that 5 divides prime(k)-prime(j), where k(n)=A205684(n).

n	a(n)
1	1
2	2
3	1
4	4
5	2
6	6
7	8
8	5
9	1
10	4
11	7
12	5
13	11
14	2
15	6
16	9
17	1
18	4
19	7
20	12
21	2
22	6
23	9
24	14
25	8
26	10
27	5
28	11
29	13
30	1
31	4
32	7
33	12
34	15
35	5
36	11
37	13
38	18
39	2
40	6
41	9
42	14
43	16
44	8
45	10
46	17
47	2
48	6
49	9
50	14
51	16
52	21
53	8
54	10
55	17
56	22
57	1
58	4
59	7
60	12
61	15
62	19
63	5
64	11
65	13
66	18
67	20
68	2
69	6
70	9
71	14
72	16
73	21
74	23
75	1
76	4
77	7
78	12
79	15
80	19

[1, 2, 1, 4, 2, 6, 8, 5, 1, 4, 7, 5, 11, 2, 6, 9, 1, 4, 7, 12, 2, 6, 9, 14, 8, 10, 5, 11, 13, 1, 4, 7, 12, 15, 5, 11, 13, 18, 2, 6, 9, 14, 16, 8, 10, 17, 2, 6, 9, 14, 16, 21, 8, 10, 17, 22, 1, 4, 7, 12, 15, 19, 5, 11, 13, 18, 20, 2, 6, 9, 14, 16, 21, 23, 1, 4, 7, 12, 15, 19]

cp's OEIS Frontend

A205685 The number j such that 5 divides prime(k)-prime(j), where k(n)=A205684(n).

Table of values

List of values

n	a(n)
1	1
2	2
3	1
4	4
5	2
6	6
7	8
8	5
9	1
10	4
11	7
12	5
13	11
14	2
15	6
16	9
17	1
18	4
19	7
20	12
21	2
22	6
23	9
24	14
25	8
26	10
27	5
28	11
29	13
30	1
31	4
32	7
33	12
34	15
35	5
36	11
37	13
38	18
39	2
40	6
41	9
42	14
43	16
44	8
45	10
46	17
47	2
48	6
49	9
50	14
51	16
52	21
53	8
54	10
55	17
56	22
57	1
58	4
59	7
60	12
61	15
62	19
63	5
64	11
65	13
66	18
67	20
68	2
69	6
70	9
71	14
72	16
73	21
74	23
75	1
76	4
77	7
78	12
79	15
80	19

n	a(n)
1	1
2	2
3	1
4	4
5	2
6	6
7	8
8	5
9	1
10	4
11	7
12	5
13	11
14	2
15	6
16	9
17	1
18	4
19	7
20	12
21	2
22	6
23	9
24	14
25	8
26	10
27	5
28	11
29	13
30	1
31	4
32	7
33	12
34	15
35	5
36	11
37	13
38	18
39	2
40	6
41	9
42	14
43	16
44	8
45	10
46	17
47	2
48	6
49	9
50	14
51	16
52	21
53	8
54	10
55	17
56	22
57	1
58	4
59	7
60	12
61	15
62	19
63	5
64	11
65	13
66	18
67	20
68	2
69	6
70	9
71	14
72	16
73	21
74	23
75	1
76	4
77	7
78	12
79	15
80	19

n	a(n)
1	1
2	2
3	1
4	4
5	2
6	6
7	8
8	5
9	1
10	4
11	7
12	5
13	11
14	2
15	6
16	9
17	1
18	4
19	7
20	12
21	2
22	6
23	9
24	14
25	8
26	10
27	5
28	11
29	13
30	1
31	4
32	7
33	12
34	15
35	5
36	11
37	13
38	18
39	2
40	6
41	9
42	14
43	16
44	8
45	10
46	17
47	2
48	6
49	9
50	14
51	16
52	21
53	8
54	10
55	17
56	22
57	1
58	4
59	7
60	12
61	15
62	19
63	5
64	11
65	13
66	18
67	20
68	2
69	6
70	9
71	14
72	16
73	21
74	23
75	1
76	4
77	7
78	12
79	15
80	19