A336371 - cp's OEIS frontend

A336371 Numbers k such that gcd(k, prime(k) + prime(k-1)) > 1.

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

[4, 6, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 22, 24, 26, 27, 28, 30, 32, 34, 36, 38, 39, 40, 42, 44, 45, 46, 48, 50, 51, 52, 54, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 76, 78, 80, 81, 82, 84, 86, 88, 90, 92, 93, 94, 95, 96, 98, 99, 100]

cp's OEIS Frontend

A336371 Numbers k such that gcd(k, prime(k) + prime(k-1)) > 1.

Table of values

List of values

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

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

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