A016014 - cp's OEIS frontend

A016014 Least k such that 2nk + 1 is a prime.

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	1
7	2
8	1
9	1
10	2
11	1
12	3
13	2
14	1
15	1
16	3
17	3
18	1
19	5
20	1
21	1
22	2
23	1
24	2
25	2
26	1
27	2
28	2
29	1
30	1
31	5
32	3
33	1
34	2
35	1
36	1
37	2
38	3
39	1
40	3
41	1
42	4
43	2
44	1
45	2
46	3
47	3
48	1
49	2
50	1
51	1
52	3
53	1
54	1
55	3
56	1
57	2
58	2
59	6
60	2
61	3
62	3
63	1
64	2
65	1
66	3
67	2
68	1
69	1
70	2
71	4
72	3
73	2
74	1
75	1
76	3
77	3
78	1
79	2
80	4
81	1
82	5
83	1
84	2
85	6
86	1
87	2
88	2
89	1
90	1
91	3
92	7
93	2
94	5
95	1
96	1
97	2
98	1
99	1

[1, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 3, 2, 1, 1, 3, 3, 1, 5, 1, 1, 2, 1, 2, 2, 1, 2, 2, 1, 1, 5, 3, 1, 2, 1, 1, 2, 3, 1, 3, 1, 4, 2, 1, 2, 3, 3, 1, 2, 1, 1, 3, 1, 1, 3, 1, 2, 2, 6, 2, 3, 3, 1, 2, 1, 3, 2, 1, 1, 2, 4, 3, 2, 1, 1, 3, 3, 1, 2, 4, 1, 5, 1, 2, 6, 1, 2, 2, 1, 1, 3, 7, 2, 5, 1, 1, 2, 1, 1]

cp's OEIS Frontend

A016014 Least k such that 2nk + 1 is a prime.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	1
7	2
8	1
9	1
10	2
11	1
12	3
13	2
14	1
15	1
16	3
17	3
18	1
19	5
20	1
21	1
22	2
23	1
24	2
25	2
26	1
27	2
28	2
29	1
30	1
31	5
32	3
33	1
34	2
35	1
36	1
37	2
38	3
39	1
40	3
41	1
42	4
43	2
44	1
45	2
46	3
47	3
48	1
49	2
50	1
51	1
52	3
53	1
54	1
55	3
56	1
57	2
58	2
59	6
60	2
61	3
62	3
63	1
64	2
65	1
66	3
67	2
68	1
69	1
70	2
71	4
72	3
73	2
74	1
75	1
76	3
77	3
78	1
79	2
80	4
81	1
82	5
83	1
84	2
85	6
86	1
87	2
88	2
89	1
90	1
91	3
92	7
93	2
94	5
95	1
96	1
97	2
98	1
99	1

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	1
7	2
8	1
9	1
10	2
11	1
12	3
13	2
14	1
15	1
16	3
17	3
18	1
19	5
20	1
21	1
22	2
23	1
24	2
25	2
26	1
27	2
28	2
29	1
30	1
31	5
32	3
33	1
34	2
35	1
36	1
37	2
38	3
39	1
40	3
41	1
42	4
43	2
44	1
45	2
46	3
47	3
48	1
49	2
50	1
51	1
52	3
53	1
54	1
55	3
56	1
57	2
58	2
59	6
60	2
61	3
62	3
63	1
64	2
65	1
66	3
67	2
68	1
69	1
70	2
71	4
72	3
73	2
74	1
75	1
76	3
77	3
78	1
79	2
80	4
81	1
82	5
83	1
84	2
85	6
86	1
87	2
88	2
89	1
90	1
91	3
92	7
93	2
94	5
95	1
96	1
97	2
98	1
99	1

cp's OEIS Frontend

A016014 Least k such that 2*n*k + 1 is a prime.

Table of values

List of values

A016014 Least k such that 2nk + 1 is a prime.

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	1
7	2
8	1
9	1
10	2
11	1
12	3
13	2
14	1
15	1
16	3
17	3
18	1
19	5
20	1
21	1
22	2
23	1
24	2
25	2
26	1
27	2
28	2
29	1
30	1
31	5
32	3
33	1
34	2
35	1
36	1
37	2
38	3
39	1
40	3
41	1
42	4
43	2
44	1
45	2
46	3
47	3
48	1
49	2
50	1
51	1
52	3
53	1
54	1
55	3
56	1
57	2
58	2
59	6
60	2
61	3
62	3
63	1
64	2
65	1
66	3
67	2
68	1
69	1
70	2
71	4
72	3
73	2
74	1
75	1
76	3
77	3
78	1
79	2
80	4
81	1
82	5
83	1
84	2
85	6
86	1
87	2
88	2
89	1
90	1
91	3
92	7
93	2
94	5
95	1
96	1
97	2
98	1
99	1