A243154 - cp's OEIS frontend

A243154 Smallest k>=0 such that prime(n)*prime(n+k)-2 is prime.

n	a(n)
1	0
2	0
3	0
4	0
5	4
6	0
7	2
8	0
9	4
10	0
11	7
12	0
13	4
14	0
15	0
16	4
17	11
18	0
19	2
20	0
21	4
22	7
23	7
24	0
25	12
26	4
27	0
28	0
29	2
30	9
31	0
32	0
33	2
34	0
35	6
36	2
37	1
38	4
39	10
40	0
41	13
42	4
43	0
44	4
45	10
46	4
47	0
48	0
49	2
50	8
51	0
52	0
53	5
54	6
55	0
56	30
57	20
58	16
59	4
60	11
61	7
62	0
63	5
64	13
65	0
66	11
67	18
68	0
69	2
70	18
71	5
72	0
73	1
74	4
75	5
76	10
77	4
78	7
79	4
80	5
81	11

[0, 0, 0, 0, 4, 0, 2, 0, 4, 0, 7, 0, 4, 0, 0, 4, 11, 0, 2, 0, 4, 7, 7, 0, 12, 4, 0, 0, 2, 9, 0, 0, 2, 0, 6, 2, 1, 4, 10, 0, 13, 4, 0, 4, 10, 4, 0, 0, 2, 8, 0, 0, 5, 6, 0, 30, 20, 16, 4, 11, 7, 0, 5, 13, 0, 11, 18, 0, 2, 18, 5, 0, 1, 4, 5, 10, 4, 7, 4, 5, 11]

cp's OEIS Frontend

A243154 Smallest k>=0 such that prime(n)*prime(n+k)-2 is prime.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	4
6	0
7	2
8	0
9	4
10	0
11	7
12	0
13	4
14	0
15	0
16	4
17	11
18	0
19	2
20	0
21	4
22	7
23	7
24	0
25	12
26	4
27	0
28	0
29	2
30	9
31	0
32	0
33	2
34	0
35	6
36	2
37	1
38	4
39	10
40	0
41	13
42	4
43	0
44	4
45	10
46	4
47	0
48	0
49	2
50	8
51	0
52	0
53	5
54	6
55	0
56	30
57	20
58	16
59	4
60	11
61	7
62	0
63	5
64	13
65	0
66	11
67	18
68	0
69	2
70	18
71	5
72	0
73	1
74	4
75	5
76	10
77	4
78	7
79	4
80	5
81	11

n	a(n)
1	0
2	0
3	0
4	0
5	4
6	0
7	2
8	0
9	4
10	0
11	7
12	0
13	4
14	0
15	0
16	4
17	11
18	0
19	2
20	0
21	4
22	7
23	7
24	0
25	12
26	4
27	0
28	0
29	2
30	9
31	0
32	0
33	2
34	0
35	6
36	2
37	1
38	4
39	10
40	0
41	13
42	4
43	0
44	4
45	10
46	4
47	0
48	0
49	2
50	8
51	0
52	0
53	5
54	6
55	0
56	30
57	20
58	16
59	4
60	11
61	7
62	0
63	5
64	13
65	0
66	11
67	18
68	0
69	2
70	18
71	5
72	0
73	1
74	4
75	5
76	10
77	4
78	7
79	4
80	5
81	11

n	a(n)
1	0
2	0
3	0
4	0
5	4
6	0
7	2
8	0
9	4
10	0
11	7
12	0
13	4
14	0
15	0
16	4
17	11
18	0
19	2
20	0
21	4
22	7
23	7
24	0
25	12
26	4
27	0
28	0
29	2
30	9
31	0
32	0
33	2
34	0
35	6
36	2
37	1
38	4
39	10
40	0
41	13
42	4
43	0
44	4
45	10
46	4
47	0
48	0
49	2
50	8
51	0
52	0
53	5
54	6
55	0
56	30
57	20
58	16
59	4
60	11
61	7
62	0
63	5
64	13
65	0
66	11
67	18
68	0
69	2
70	18
71	5
72	0
73	1
74	4
75	5
76	10
77	4
78	7
79	4
80	5
81	11