A366931 - cp's OEIS frontend

A366931 Least k such that 3nk+1 is a prime.

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

[2, 1, 2, 1, 2, 1, 2, 3, 4, 1, 2, 1, 2, 1, 4, 2, 2, 2, 4, 1, 2, 1, 2, 1, 2, 1, 2, 4, 4, 2, 4, 1, 2, 1, 2, 1, 2, 2, 8, 2, 6, 1, 8, 3, 2, 1, 2, 3, 6, 1, 2, 1, 20, 1, 2, 2, 12, 2, 4, 1, 2, 2, 2, 1, 6, 1, 8, 2, 4, 1, 4, 2, 2, 1, 8, 1, 2, 4, 6, 1, 2, 3, 2, 3, 4, 4]

cp's OEIS Frontend

A366931 Least k such that 3nk+1 is a prime.

Table of values

List of values

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

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

cp's OEIS Frontend

A366931 Least k such that 3*n*k+1 is a prime.

Table of values

List of values

A366931 Least k such that 3nk+1 is a prime.

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