A035096 - cp's OEIS frontend

A035096 a(n) is the smallest k such that prime(n)*k+1 is prime.

n	a(n)
1	1
2	2
3	2
4	4
5	2
6	4
7	6
8	10
9	2
10	2
11	10
12	4
13	2
14	4
15	6
16	2
17	12
18	6
19	4
20	8
21	4
22	4
23	2
24	2
25	4
26	6
27	6
28	6
29	10
30	2
31	4
32	2
33	6
34	4
35	8
36	6
37	10
38	4
39	14
40	2
41	2
42	6
43	2
44	4
45	18
46	4
47	10
48	12
49	24
50	12
51	2
52	2
53	6
54	2
55	6
56	6
57	8
58	6
59	4
60	2
61	6
62	2
63	4
64	6
65	6
66	26
67	6
68	10
69	6
70	10
71	14
72	2
73	6
74	4
75	12
76	12
77	24
78	6
79	8
80	4
81	2
82	10
83	2
84	4
85	10
86	2
87	8
88	30

[1, 2, 2, 4, 2, 4, 6, 10, 2, 2, 10, 4, 2, 4, 6, 2, 12, 6, 4, 8, 4, 4, 2, 2, 4, 6, 6, 6, 10, 2, 4, 2, 6, 4, 8, 6, 10, 4, 14, 2, 2, 6, 2, 4, 18, 4, 10, 12, 24, 12, 2, 2, 6, 2, 6, 6, 8, 6, 4, 2, 6, 2, 4, 6, 6, 26, 6, 10, 6, 10, 14, 2, 6, 4, 12, 12, 24, 6, 8, 4, 2, 10, 2, 4, 10, 2, 8, 30]

cp's OEIS Frontend

A035096 a(n) is the smallest k such that prime(n)*k+1 is prime.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	4
5	2
6	4
7	6
8	10
9	2
10	2
11	10
12	4
13	2
14	4
15	6
16	2
17	12
18	6
19	4
20	8
21	4
22	4
23	2
24	2
25	4
26	6
27	6
28	6
29	10
30	2
31	4
32	2
33	6
34	4
35	8
36	6
37	10
38	4
39	14
40	2
41	2
42	6
43	2
44	4
45	18
46	4
47	10
48	12
49	24
50	12
51	2
52	2
53	6
54	2
55	6
56	6
57	8
58	6
59	4
60	2
61	6
62	2
63	4
64	6
65	6
66	26
67	6
68	10
69	6
70	10
71	14
72	2
73	6
74	4
75	12
76	12
77	24
78	6
79	8
80	4
81	2
82	10
83	2
84	4
85	10
86	2
87	8
88	30

n	a(n)
1	1
2	2
3	2
4	4
5	2
6	4
7	6
8	10
9	2
10	2
11	10
12	4
13	2
14	4
15	6
16	2
17	12
18	6
19	4
20	8
21	4
22	4
23	2
24	2
25	4
26	6
27	6
28	6
29	10
30	2
31	4
32	2
33	6
34	4
35	8
36	6
37	10
38	4
39	14
40	2
41	2
42	6
43	2
44	4
45	18
46	4
47	10
48	12
49	24
50	12
51	2
52	2
53	6
54	2
55	6
56	6
57	8
58	6
59	4
60	2
61	6
62	2
63	4
64	6
65	6
66	26
67	6
68	10
69	6
70	10
71	14
72	2
73	6
74	4
75	12
76	12
77	24
78	6
79	8
80	4
81	2
82	10
83	2
84	4
85	10
86	2
87	8
88	30

n	a(n)
1	1
2	2
3	2
4	4
5	2
6	4
7	6
8	10
9	2
10	2
11	10
12	4
13	2
14	4
15	6
16	2
17	12
18	6
19	4
20	8
21	4
22	4
23	2
24	2
25	4
26	6
27	6
28	6
29	10
30	2
31	4
32	2
33	6
34	4
35	8
36	6
37	10
38	4
39	14
40	2
41	2
42	6
43	2
44	4
45	18
46	4
47	10
48	12
49	24
50	12
51	2
52	2
53	6
54	2
55	6
56	6
57	8
58	6
59	4
60	2
61	6
62	2
63	4
64	6
65	6
66	26
67	6
68	10
69	6
70	10
71	14
72	2
73	6
74	4
75	12
76	12
77	24
78	6
79	8
80	4
81	2
82	10
83	2
84	4
85	10
86	2
87	8
88	30