A382393 - cp's OEIS frontend

A382393 Positive integers k such that 6k - 1 is prime for k != 1 (mod 5) and (6k - 1)/5 is prime for k == 1 (mod 5).

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

[2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 22, 23, 25, 26, 28, 29, 30, 31, 32, 33, 36, 38, 39, 40, 42, 43, 44, 45, 47, 49, 51, 52, 53, 56, 58, 59, 60, 61, 64, 65, 66, 67, 70, 72, 74, 75, 77, 78, 80, 81, 82, 84, 85, 86, 87, 91, 93, 94, 95, 98, 99, 100]

cp's OEIS Frontend

A382393 Positive integers k such that 6k - 1 is prime for k != 1 (mod 5) and (6k - 1)/5 is prime for k == 1 (mod 5).

Table of values

List of values

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

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

cp's OEIS Frontend

A382393 Positive integers k such that 6*k - 1 is prime for k != 1 (mod 5) and (6*k - 1)/5 is prime for k == 1 (mod 5).

Table of values

List of values

A382393 Positive integers k such that 6k - 1 is prime for k != 1 (mod 5) and (6k - 1)/5 is prime for k == 1 (mod 5).

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