A275616 - cp's OEIS frontend

A275616 Numbers n such that n and omega(n) are relatively prime, where omega(n) (A001221) is the number of distinct prime divisors of n.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	11
10	13
11	15
12	16
13	17
14	19
15	21
16	23
17	25
18	27
19	29
20	31
21	32
22	33
23	35
24	37
25	39
26	41
27	43
28	45
29	47
30	49
31	51
32	53
33	55
34	57
35	59
36	61
37	63
38	64
39	65
40	67
41	69
42	70
43	71
44	73
45	75
46	77
47	79
48	81
49	83
50	85
51	87
52	89
53	91
54	93
55	95
56	97
57	99
58	101
59	103
60	107
61	109
62	110
63	111
64	113
65	115
66	117
67	119
68	121
69	123
70	125
71	127
72	128
73	129
74	130
75	131
76	133
77	135

[1, 2, 3, 4, 5, 7, 8, 9, 11, 13, 15, 16, 17, 19, 21, 23, 25, 27, 29, 31, 32, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 64, 65, 67, 69, 70, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101, 103, 107, 109, 110, 111, 113, 115, 117, 119, 121, 123, 125, 127, 128, 129, 130, 131, 133, 135]

cp's OEIS Frontend

A275616 Numbers n such that n and omega(n) are relatively prime, where omega(n) (A001221) is the number of distinct prime divisors of n.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	11
10	13
11	15
12	16
13	17
14	19
15	21
16	23
17	25
18	27
19	29
20	31
21	32
22	33
23	35
24	37
25	39
26	41
27	43
28	45
29	47
30	49
31	51
32	53
33	55
34	57
35	59
36	61
37	63
38	64
39	65
40	67
41	69
42	70
43	71
44	73
45	75
46	77
47	79
48	81
49	83
50	85
51	87
52	89
53	91
54	93
55	95
56	97
57	99
58	101
59	103
60	107
61	109
62	110
63	111
64	113
65	115
66	117
67	119
68	121
69	123
70	125
71	127
72	128
73	129
74	130
75	131
76	133
77	135

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	11
10	13
11	15
12	16
13	17
14	19
15	21
16	23
17	25
18	27
19	29
20	31
21	32
22	33
23	35
24	37
25	39
26	41
27	43
28	45
29	47
30	49
31	51
32	53
33	55
34	57
35	59
36	61
37	63
38	64
39	65
40	67
41	69
42	70
43	71
44	73
45	75
46	77
47	79
48	81
49	83
50	85
51	87
52	89
53	91
54	93
55	95
56	97
57	99
58	101
59	103
60	107
61	109
62	110
63	111
64	113
65	115
66	117
67	119
68	121
69	123
70	125
71	127
72	128
73	129
74	130
75	131
76	133
77	135

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	11
10	13
11	15
12	16
13	17
14	19
15	21
16	23
17	25
18	27
19	29
20	31
21	32
22	33
23	35
24	37
25	39
26	41
27	43
28	45
29	47
30	49
31	51
32	53
33	55
34	57
35	59
36	61
37	63
38	64
39	65
40	67
41	69
42	70
43	71
44	73
45	75
46	77
47	79
48	81
49	83
50	85
51	87
52	89
53	91
54	93
55	95
56	97
57	99
58	101
59	103
60	107
61	109
62	110
63	111
64	113
65	115
66	117
67	119
68	121
69	123
70	125
71	127
72	128
73	129
74	130
75	131
76	133
77	135