A139460 - cp's OEIS frontend

A139460 a(n) = m such that 2*prime(n+m+1) + (product of n successive odd primes) is prime.

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	3
7	3
8	1
9	1
10	2
11	1
12	1
13	9
14	2
15	7
16	21
17	7
18	25
19	4
20	3
21	18
22	7
23	4
24	7
25	11
26	5
27	1
28	1
29	61
30	5
31	20
32	6
33	22
34	16
35	11
36	17
37	1
38	70
39	6
40	5
41	5
42	22
43	9
44	52
45	108
46	16
47	1
48	32
49	42
50	15
51	5
52	66
53	6
54	8
55	3
56	38
57	17
58	4
59	23
60	93
61	8
62	16
63	6
64	1
65	39
66	7
67	9
68	10
69	21
70	57
71	40
72	2
73	15
74	39
75	16
76	7
77	5
78	13
79	138
80	95
81	58
82	8
83	47
84	11
85	39

[1, 1, 1, 1, 2, 3, 3, 1, 1, 2, 1, 1, 9, 2, 7, 21, 7, 25, 4, 3, 18, 7, 4, 7, 11, 5, 1, 1, 61, 5, 20, 6, 22, 16, 11, 17, 1, 70, 6, 5, 5, 22, 9, 52, 108, 16, 1, 32, 42, 15, 5, 66, 6, 8, 3, 38, 17, 4, 23, 93, 8, 16, 6, 1, 39, 7, 9, 10, 21, 57, 40, 2, 15, 39, 16, 7, 5, 13, 138, 95, 58, 8, 47, 11, 39]

cp's OEIS Frontend

A139460 a(n) = m such that 2*prime(n+m+1) + (product of n successive odd primes) is prime.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	3
7	3
8	1
9	1
10	2
11	1
12	1
13	9
14	2
15	7
16	21
17	7
18	25
19	4
20	3
21	18
22	7
23	4
24	7
25	11
26	5
27	1
28	1
29	61
30	5
31	20
32	6
33	22
34	16
35	11
36	17
37	1
38	70
39	6
40	5
41	5
42	22
43	9
44	52
45	108
46	16
47	1
48	32
49	42
50	15
51	5
52	66
53	6
54	8
55	3
56	38
57	17
58	4
59	23
60	93
61	8
62	16
63	6
64	1
65	39
66	7
67	9
68	10
69	21
70	57
71	40
72	2
73	15
74	39
75	16
76	7
77	5
78	13
79	138
80	95
81	58
82	8
83	47
84	11
85	39

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	3
7	3
8	1
9	1
10	2
11	1
12	1
13	9
14	2
15	7
16	21
17	7
18	25
19	4
20	3
21	18
22	7
23	4
24	7
25	11
26	5
27	1
28	1
29	61
30	5
31	20
32	6
33	22
34	16
35	11
36	17
37	1
38	70
39	6
40	5
41	5
42	22
43	9
44	52
45	108
46	16
47	1
48	32
49	42
50	15
51	5
52	66
53	6
54	8
55	3
56	38
57	17
58	4
59	23
60	93
61	8
62	16
63	6
64	1
65	39
66	7
67	9
68	10
69	21
70	57
71	40
72	2
73	15
74	39
75	16
76	7
77	5
78	13
79	138
80	95
81	58
82	8
83	47
84	11
85	39

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	3
7	3
8	1
9	1
10	2
11	1
12	1
13	9
14	2
15	7
16	21
17	7
18	25
19	4
20	3
21	18
22	7
23	4
24	7
25	11
26	5
27	1
28	1
29	61
30	5
31	20
32	6
33	22
34	16
35	11
36	17
37	1
38	70
39	6
40	5
41	5
42	22
43	9
44	52
45	108
46	16
47	1
48	32
49	42
50	15
51	5
52	66
53	6
54	8
55	3
56	38
57	17
58	4
59	23
60	93
61	8
62	16
63	6
64	1
65	39
66	7
67	9
68	10
69	21
70	57
71	40
72	2
73	15
74	39
75	16
76	7
77	5
78	13
79	138
80	95
81	58
82	8
83	47
84	11
85	39