A205678 - cp's OEIS frontend

A205678 The number j such that 4 divides prime(k)-prime(j), where k(n)=A205677(n).

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

[2, 2, 4, 3, 3, 6, 2, 4, 5, 2, 4, 5, 8, 3, 6, 7, 2, 4, 5, 8, 9, 3, 6, 7, 10, 3, 6, 7, 10, 12, 2, 4, 5, 8, 9, 11, 2, 4, 5, 8, 9, 11, 14, 3, 6, 7, 10, 12, 13, 2, 4, 5, 8, 9, 11, 14, 15, 3, 6, 7, 10, 12, 13, 16, 2, 4, 5, 8, 9, 11, 14, 15, 17, 2, 4, 5, 8, 9, 11, 14]

cp's OEIS Frontend

A205678 The number j such that 4 divides prime(k)-prime(j), where k(n)=A205677(n).

Table of values

List of values

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

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

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