A205721 - cp's OEIS frontend

A205721 The number j such that 10 divides prime(k)-prime(j), where k(n)=A205720(n).

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

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

cp's OEIS Frontend

A205721 The number j such that 10 divides prime(k)-prime(j), where k(n)=A205720(n).

Table of values

List of values

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

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

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