A381096 - cp's OEIS frontend

A381096 Number of k <= n such that k is neither coprime to n and rad(k) != rad(n), where rad = A007947.

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

[0, 0, 0, 0, 0, 3, 0, 1, 1, 5, 0, 6, 0, 7, 6, 4, 0, 10, 0, 10, 8, 11, 0, 13, 3, 13, 6, 14, 0, 21, 0, 11, 12, 17, 10, 20, 0, 19, 14, 21, 0, 29, 0, 22, 19, 23, 0, 28, 5, 28, 18, 26, 0, 33, 14, 29, 20, 29, 0, 42, 0, 31, 25, 26, 16, 45, 0, 34, 24, 45, 0, 42, 0, 37]

cp's OEIS Frontend

A381096 Number of k <= n such that k is neither coprime to n and rad(k) != rad(n), where rad = A007947.

Table of values

List of values

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

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

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