A065985 - cp's OEIS frontend

A065985 Numbers k such that d(k) / 2 is prime, where d(k) = number of divisors of k.

n	a(n)
1	6
2	8
3	10
4	12
5	14
6	15
7	18
8	20
9	21
10	22
11	26
12	27
13	28
14	32
15	33
16	34
17	35
18	38
19	39
20	44
21	45
22	46
23	48
24	50
25	51
26	52
27	55
28	57
29	58
30	62
31	63
32	65
33	68
34	69
35	74
36	75
37	76
38	77
39	80
40	82
41	85
42	86
43	87
44	91
45	92
46	93
47	94
48	95
49	98
50	99
51	106
52	111
53	112
54	115
55	116
56	117
57	118
58	119
59	122
60	123
61	124
62	125
63	129
64	133
65	134

[6, 8, 10, 12, 14, 15, 18, 20, 21, 22, 26, 27, 28, 32, 33, 34, 35, 38, 39, 44, 45, 46, 48, 50, 51, 52, 55, 57, 58, 62, 63, 65, 68, 69, 74, 75, 76, 77, 80, 82, 85, 86, 87, 91, 92, 93, 94, 95, 98, 99, 106, 111, 112, 115, 116, 117, 118, 119, 122, 123, 124, 125, 129, 133, 134]

cp's OEIS Frontend

A065985 Numbers k such that d(k) / 2 is prime, where d(k) = number of divisors of k.

Table of values

List of values

n	a(n)
1	6
2	8
3	10
4	12
5	14
6	15
7	18
8	20
9	21
10	22
11	26
12	27
13	28
14	32
15	33
16	34
17	35
18	38
19	39
20	44
21	45
22	46
23	48
24	50
25	51
26	52
27	55
28	57
29	58
30	62
31	63
32	65
33	68
34	69
35	74
36	75
37	76
38	77
39	80
40	82
41	85
42	86
43	87
44	91
45	92
46	93
47	94
48	95
49	98
50	99
51	106
52	111
53	112
54	115
55	116
56	117
57	118
58	119
59	122
60	123
61	124
62	125
63	129
64	133
65	134

n	a(n)
1	6
2	8
3	10
4	12
5	14
6	15
7	18
8	20
9	21
10	22
11	26
12	27
13	28
14	32
15	33
16	34
17	35
18	38
19	39
20	44
21	45
22	46
23	48
24	50
25	51
26	52
27	55
28	57
29	58
30	62
31	63
32	65
33	68
34	69
35	74
36	75
37	76
38	77
39	80
40	82
41	85
42	86
43	87
44	91
45	92
46	93
47	94
48	95
49	98
50	99
51	106
52	111
53	112
54	115
55	116
56	117
57	118
58	119
59	122
60	123
61	124
62	125
63	129
64	133
65	134

n	a(n)
1	6
2	8
3	10
4	12
5	14
6	15
7	18
8	20
9	21
10	22
11	26
12	27
13	28
14	32
15	33
16	34
17	35
18	38
19	39
20	44
21	45
22	46
23	48
24	50
25	51
26	52
27	55
28	57
29	58
30	62
31	63
32	65
33	68
34	69
35	74
36	75
37	76
38	77
39	80
40	82
41	85
42	86
43	87
44	91
45	92
46	93
47	94
48	95
49	98
50	99
51	106
52	111
53	112
54	115
55	116
56	117
57	118
58	119
59	122
60	123
61	124
62	125
63	129
64	133
65	134