A307368 - cp's OEIS frontend

A307368 a(n) is the minimal positive integer such that 2a(n)prime(n)-1 equals another prime.

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	4
7	2
8	1
9	3
10	3
11	1
12	1
13	2
14	3
15	3
16	2
17	3
18	4
19	3
20	2
21	7
22	1
23	2
24	8
25	1
26	5
27	3
28	3
29	3
30	3
31	3
32	2
33	2
34	1
35	5
36	6
37	1
38	3
39	5
40	2
41	5
42	4
43	11
44	4
45	2
46	1
47	1
48	4
49	2
50	1
51	8
52	3
53	7
54	6
55	6
56	2
57	3
58	1
59	6
60	2
61	3
62	2
63	1
64	5
65	3
66	3
67	1
68	1
69	3
70	4
71	5
72	3
73	1
74	3
75	1
76	2
77	3
78	3
79	11
80	4
81	8
82	6
83	2
84	4
85	1
86	3
87	3
88	3
89	6
90	3
91	2
92	5
93	6
94	5
95	1
96	2
97	9
98	2
99	3
100	4
101	1
102	5
103	2
104	3
105	4
106	1
107	2
108	2
109	3

[1, 1, 2, 1, 2, 4, 2, 1, 3, 3, 1, 1, 2, 3, 3, 2, 3, 4, 3, 2, 7, 1, 2, 8, 1, 5, 3, 3, 3, 3, 3, 2, 2, 1, 5, 6, 1, 3, 5, 2, 5, 4, 11, 4, 2, 1, 1, 4, 2, 1, 8, 3, 7, 6, 6, 2, 3, 1, 6, 2, 3, 2, 1, 5, 3, 3, 1, 1, 3, 4, 5, 3, 1, 3, 1, 2, 3, 3, 11, 4, 8, 6, 2, 4, 1, 3, 3, 3, 6, 3, 2, 5, 6, 5, 1, 2, 9, 2, 3, 4, 1, 5, 2, 3, 4, 1, 2, 2, 3]

cp's OEIS Frontend

A307368 a(n) is the minimal positive integer such that 2a(n)prime(n)-1 equals another prime.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	4
7	2
8	1
9	3
10	3
11	1
12	1
13	2
14	3
15	3
16	2
17	3
18	4
19	3
20	2
21	7
22	1
23	2
24	8
25	1
26	5
27	3
28	3
29	3
30	3
31	3
32	2
33	2
34	1
35	5
36	6
37	1
38	3
39	5
40	2
41	5
42	4
43	11
44	4
45	2
46	1
47	1
48	4
49	2
50	1
51	8
52	3
53	7
54	6
55	6
56	2
57	3
58	1
59	6
60	2
61	3
62	2
63	1
64	5
65	3
66	3
67	1
68	1
69	3
70	4
71	5
72	3
73	1
74	3
75	1
76	2
77	3
78	3
79	11
80	4
81	8
82	6
83	2
84	4
85	1
86	3
87	3
88	3
89	6
90	3
91	2
92	5
93	6
94	5
95	1
96	2
97	9
98	2
99	3
100	4
101	1
102	5
103	2
104	3
105	4
106	1
107	2
108	2
109	3

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	4
7	2
8	1
9	3
10	3
11	1
12	1
13	2
14	3
15	3
16	2
17	3
18	4
19	3
20	2
21	7
22	1
23	2
24	8
25	1
26	5
27	3
28	3
29	3
30	3
31	3
32	2
33	2
34	1
35	5
36	6
37	1
38	3
39	5
40	2
41	5
42	4
43	11
44	4
45	2
46	1
47	1
48	4
49	2
50	1
51	8
52	3
53	7
54	6
55	6
56	2
57	3
58	1
59	6
60	2
61	3
62	2
63	1
64	5
65	3
66	3
67	1
68	1
69	3
70	4
71	5
72	3
73	1
74	3
75	1
76	2
77	3
78	3
79	11
80	4
81	8
82	6
83	2
84	4
85	1
86	3
87	3
88	3
89	6
90	3
91	2
92	5
93	6
94	5
95	1
96	2
97	9
98	2
99	3
100	4
101	1
102	5
103	2
104	3
105	4
106	1
107	2
108	2
109	3

cp's OEIS Frontend

A307368 a(n) is the minimal positive integer such that 2*a(n)*prime(n)-1 equals another prime.

Table of values

List of values

A307368 a(n) is the minimal positive integer such that 2a(n)prime(n)-1 equals another prime.

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	4
7	2
8	1
9	3
10	3
11	1
12	1
13	2
14	3
15	3
16	2
17	3
18	4
19	3
20	2
21	7
22	1
23	2
24	8
25	1
26	5
27	3
28	3
29	3
30	3
31	3
32	2
33	2
34	1
35	5
36	6
37	1
38	3
39	5
40	2
41	5
42	4
43	11
44	4
45	2
46	1
47	1
48	4
49	2
50	1
51	8
52	3
53	7
54	6
55	6
56	2
57	3
58	1
59	6
60	2
61	3
62	2
63	1
64	5
65	3
66	3
67	1
68	1
69	3
70	4
71	5
72	3
73	1
74	3
75	1
76	2
77	3
78	3
79	11
80	4
81	8
82	6
83	2
84	4
85	1
86	3
87	3
88	3
89	6
90	3
91	2
92	5
93	6
94	5
95	1
96	2
97	9
98	2
99	3
100	4
101	1
102	5
103	2
104	3
105	4
106	1
107	2
108	2
109	3