A230843 - cp's OEIS frontend

A230843 Cubefree numbers which in their canonical prime factorization have mutually distinct exponents.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	9
8	11
9	12
10	13
11	17
12	18
13	19
14	20
15	23
16	25
17	28
18	29
19	31
20	37
21	41
22	43
23	44
24	45
25	47
26	49
27	50
28	52
29	53
30	59
31	61
32	63
33	67
34	68
35	71
36	73
37	75
38	76
39	79
40	83
41	89
42	92
43	97
44	98
45	99
46	101
47	103
48	107
49	109
50	113
51	116
52	117
53	121
54	124
55	127
56	131
57	137
58	139
59	147
60	148
61	149
62	151
63	153
64	157
65	163
66	164
67	167
68	169
69	171

[1, 2, 3, 4, 5, 7, 9, 11, 12, 13, 17, 18, 19, 20, 23, 25, 28, 29, 31, 37, 41, 43, 44, 45, 47, 49, 50, 52, 53, 59, 61, 63, 67, 68, 71, 73, 75, 76, 79, 83, 89, 92, 97, 98, 99, 101, 103, 107, 109, 113, 116, 117, 121, 124, 127, 131, 137, 139, 147, 148, 149, 151, 153, 157, 163, 164, 167, 169, 171]

cp's OEIS Frontend

A230843 Cubefree numbers which in their canonical prime factorization have mutually distinct exponents.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	9
8	11
9	12
10	13
11	17
12	18
13	19
14	20
15	23
16	25
17	28
18	29
19	31
20	37
21	41
22	43
23	44
24	45
25	47
26	49
27	50
28	52
29	53
30	59
31	61
32	63
33	67
34	68
35	71
36	73
37	75
38	76
39	79
40	83
41	89
42	92
43	97
44	98
45	99
46	101
47	103
48	107
49	109
50	113
51	116
52	117
53	121
54	124
55	127
56	131
57	137
58	139
59	147
60	148
61	149
62	151
63	153
64	157
65	163
66	164
67	167
68	169
69	171

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	9
8	11
9	12
10	13
11	17
12	18
13	19
14	20
15	23
16	25
17	28
18	29
19	31
20	37
21	41
22	43
23	44
24	45
25	47
26	49
27	50
28	52
29	53
30	59
31	61
32	63
33	67
34	68
35	71
36	73
37	75
38	76
39	79
40	83
41	89
42	92
43	97
44	98
45	99
46	101
47	103
48	107
49	109
50	113
51	116
52	117
53	121
54	124
55	127
56	131
57	137
58	139
59	147
60	148
61	149
62	151
63	153
64	157
65	163
66	164
67	167
68	169
69	171

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	9
8	11
9	12
10	13
11	17
12	18
13	19
14	20
15	23
16	25
17	28
18	29
19	31
20	37
21	41
22	43
23	44
24	45
25	47
26	49
27	50
28	52
29	53
30	59
31	61
32	63
33	67
34	68
35	71
36	73
37	75
38	76
39	79
40	83
41	89
42	92
43	97
44	98
45	99
46	101
47	103
48	107
49	109
50	113
51	116
52	117
53	121
54	124
55	127
56	131
57	137
58	139
59	147
60	148
61	149
62	151
63	153
64	157
65	163
66	164
67	167
68	169
69	171