A072358 - cp's OEIS frontend

A072358 Number of cubefree numbers <= n which are not squarefree.

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	1
7	1
8	1
9	2
10	2
11	2
12	3
13	3
14	3
15	3
16	3
17	3
18	4
19	4
20	5
21	5
22	5
23	5
24	5
25	6
26	6
27	6
28	7
29	7
30	7
31	7
32	7
33	7
34	7
35	7
36	8
37	8
38	8
39	8
40	8
41	8
42	8
43	8
44	9
45	10
46	10
47	10
48	10
49	11
50	12
51	12
52	13
53	13
54	13
55	13
56	13
57	13
58	13
59	13
60	14
61	14
62	14
63	15
64	15
65	15
66	15
67	15
68	16
69	16
70	16
71	16
72	16
73	16
74	16
75	17
76	18
77	18
78	18
79	18
80	18
81	18
82	18
83	18
84	19

[0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 9, 10, 10, 10, 10, 11, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19]

cp's OEIS Frontend

A072358 Number of cubefree numbers <= n which are not squarefree.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	1
7	1
8	1
9	2
10	2
11	2
12	3
13	3
14	3
15	3
16	3
17	3
18	4
19	4
20	5
21	5
22	5
23	5
24	5
25	6
26	6
27	6
28	7
29	7
30	7
31	7
32	7
33	7
34	7
35	7
36	8
37	8
38	8
39	8
40	8
41	8
42	8
43	8
44	9
45	10
46	10
47	10
48	10
49	11
50	12
51	12
52	13
53	13
54	13
55	13
56	13
57	13
58	13
59	13
60	14
61	14
62	14
63	15
64	15
65	15
66	15
67	15
68	16
69	16
70	16
71	16
72	16
73	16
74	16
75	17
76	18
77	18
78	18
79	18
80	18
81	18
82	18
83	18
84	19

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	1
7	1
8	1
9	2
10	2
11	2
12	3
13	3
14	3
15	3
16	3
17	3
18	4
19	4
20	5
21	5
22	5
23	5
24	5
25	6
26	6
27	6
28	7
29	7
30	7
31	7
32	7
33	7
34	7
35	7
36	8
37	8
38	8
39	8
40	8
41	8
42	8
43	8
44	9
45	10
46	10
47	10
48	10
49	11
50	12
51	12
52	13
53	13
54	13
55	13
56	13
57	13
58	13
59	13
60	14
61	14
62	14
63	15
64	15
65	15
66	15
67	15
68	16
69	16
70	16
71	16
72	16
73	16
74	16
75	17
76	18
77	18
78	18
79	18
80	18
81	18
82	18
83	18
84	19

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	1
7	1
8	1
9	2
10	2
11	2
12	3
13	3
14	3
15	3
16	3
17	3
18	4
19	4
20	5
21	5
22	5
23	5
24	5
25	6
26	6
27	6
28	7
29	7
30	7
31	7
32	7
33	7
34	7
35	7
36	8
37	8
38	8
39	8
40	8
41	8
42	8
43	8
44	9
45	10
46	10
47	10
48	10
49	11
50	12
51	12
52	13
53	13
54	13
55	13
56	13
57	13
58	13
59	13
60	14
61	14
62	14
63	15
64	15
65	15
66	15
67	15
68	16
69	16
70	16
71	16
72	16
73	16
74	16
75	17
76	18
77	18
78	18
79	18
80	18
81	18
82	18
83	18
84	19