A072375 - cp's OEIS frontend

A072375 Number of cubefree numbers <= n which are nonsquares having exactly one square in their factorization.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	1
13	1
14	1
15	1
16	1
17	1
18	2
19	2
20	3
21	3
22	3
23	3
24	3
25	3
26	3
27	3
28	4
29	4
30	4
31	4
32	4
33	4
34	4
35	4
36	4
37	4
38	4
39	4
40	4
41	4
42	4
43	4
44	5
45	6
46	6
47	6
48	6
49	6
50	7
51	7
52	8
53	8
54	8
55	8
56	8
57	8
58	8
59	8
60	9
61	9
62	9
63	10
64	10
65	10
66	10
67	10
68	11
69	11
70	11
71	11
72	11
73	11
74	11
75	12
76	13
77	13
78	13
79	13
80	13
81	13
82	13
83	13
84	14
85	14
86	14
87	14
88	14
89	14
90	15

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

cp's OEIS Frontend

A072375 Number of cubefree numbers <= n which are nonsquares having exactly one square in their factorization.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	1
13	1
14	1
15	1
16	1
17	1
18	2
19	2
20	3
21	3
22	3
23	3
24	3
25	3
26	3
27	3
28	4
29	4
30	4
31	4
32	4
33	4
34	4
35	4
36	4
37	4
38	4
39	4
40	4
41	4
42	4
43	4
44	5
45	6
46	6
47	6
48	6
49	6
50	7
51	7
52	8
53	8
54	8
55	8
56	8
57	8
58	8
59	8
60	9
61	9
62	9
63	10
64	10
65	10
66	10
67	10
68	11
69	11
70	11
71	11
72	11
73	11
74	11
75	12
76	13
77	13
78	13
79	13
80	13
81	13
82	13
83	13
84	14
85	14
86	14
87	14
88	14
89	14
90	15

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	1
13	1
14	1
15	1
16	1
17	1
18	2
19	2
20	3
21	3
22	3
23	3
24	3
25	3
26	3
27	3
28	4
29	4
30	4
31	4
32	4
33	4
34	4
35	4
36	4
37	4
38	4
39	4
40	4
41	4
42	4
43	4
44	5
45	6
46	6
47	6
48	6
49	6
50	7
51	7
52	8
53	8
54	8
55	8
56	8
57	8
58	8
59	8
60	9
61	9
62	9
63	10
64	10
65	10
66	10
67	10
68	11
69	11
70	11
71	11
72	11
73	11
74	11
75	12
76	13
77	13
78	13
79	13
80	13
81	13
82	13
83	13
84	14
85	14
86	14
87	14
88	14
89	14
90	15

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	1
13	1
14	1
15	1
16	1
17	1
18	2
19	2
20	3
21	3
22	3
23	3
24	3
25	3
26	3
27	3
28	4
29	4
30	4
31	4
32	4
33	4
34	4
35	4
36	4
37	4
38	4
39	4
40	4
41	4
42	4
43	4
44	5
45	6
46	6
47	6
48	6
49	6
50	7
51	7
52	8
53	8
54	8
55	8
56	8
57	8
58	8
59	8
60	9
61	9
62	9
63	10
64	10
65	10
66	10
67	10
68	11
69	11
70	11
71	11
72	11
73	11
74	11
75	12
76	13
77	13
78	13
79	13
80	13
81	13
82	13
83	13
84	14
85	14
86	14
87	14
88	14
89	14
90	15