A030230 - cp's OEIS frontend

A030230 Numbers that have an odd number of distinct prime divisors.

n	a(n)
1	2
2	3
3	4
4	5
5	7
6	8
7	9
8	11
9	13
10	16
11	17
12	19
13	23
14	25
15	27
16	29
17	30
18	31
19	32
20	37
21	41
22	42
23	43
24	47
25	49
26	53
27	59
28	60
29	61
30	64
31	66
32	67
33	70
34	71
35	73
36	78
37	79
38	81
39	83
40	84
41	89
42	90
43	97
44	101
45	102
46	103
47	105
48	107
49	109
50	110
51	113
52	114
53	120
54	121
55	125
56	126
57	127
58	128
59	130
60	131
61	132
62	137
63	138
64	139
65	140
66	149

[2, 3, 4, 5, 7, 8, 9, 11, 13, 16, 17, 19, 23, 25, 27, 29, 30, 31, 32, 37, 41, 42, 43, 47, 49, 53, 59, 60, 61, 64, 66, 67, 70, 71, 73, 78, 79, 81, 83, 84, 89, 90, 97, 101, 102, 103, 105, 107, 109, 110, 113, 114, 120, 121, 125, 126, 127, 128, 130, 131, 132, 137, 138, 139, 140, 149]

cp's OEIS Frontend

A030230 Numbers that have an odd number of distinct prime divisors.

Table of values

List of values

n	a(n)
1	2
2	3
3	4
4	5
5	7
6	8
7	9
8	11
9	13
10	16
11	17
12	19
13	23
14	25
15	27
16	29
17	30
18	31
19	32
20	37
21	41
22	42
23	43
24	47
25	49
26	53
27	59
28	60
29	61
30	64
31	66
32	67
33	70
34	71
35	73
36	78
37	79
38	81
39	83
40	84
41	89
42	90
43	97
44	101
45	102
46	103
47	105
48	107
49	109
50	110
51	113
52	114
53	120
54	121
55	125
56	126
57	127
58	128
59	130
60	131
61	132
62	137
63	138
64	139
65	140
66	149

n	a(n)
1	2
2	3
3	4
4	5
5	7
6	8
7	9
8	11
9	13
10	16
11	17
12	19
13	23
14	25
15	27
16	29
17	30
18	31
19	32
20	37
21	41
22	42
23	43
24	47
25	49
26	53
27	59
28	60
29	61
30	64
31	66
32	67
33	70
34	71
35	73
36	78
37	79
38	81
39	83
40	84
41	89
42	90
43	97
44	101
45	102
46	103
47	105
48	107
49	109
50	110
51	113
52	114
53	120
54	121
55	125
56	126
57	127
58	128
59	130
60	131
61	132
62	137
63	138
64	139
65	140
66	149

n	a(n)
1	2
2	3
3	4
4	5
5	7
6	8
7	9
8	11
9	13
10	16
11	17
12	19
13	23
14	25
15	27
16	29
17	30
18	31
19	32
20	37
21	41
22	42
23	43
24	47
25	49
26	53
27	59
28	60
29	61
30	64
31	66
32	67
33	70
34	71
35	73
36	78
37	79
38	81
39	83
40	84
41	89
42	90
43	97
44	101
45	102
46	103
47	105
48	107
49	109
50	110
51	113
52	114
53	120
54	121
55	125
56	126
57	127
58	128
59	130
60	131
61	132
62	137
63	138
64	139
65	140
66	149