A349658 - cp's OEIS frontend

A349658 Number of nonrefactorable divisors of n.

n	a(n)
1	0
2	0
3	1
4	1
5	1
6	2
7	1
8	1
9	1
10	2
11	1
12	3
13	1
14	2
15	3
16	2
17	1
18	2
19	1
20	4
21	3
22	2
23	1
24	3
25	2
26	2
27	2
28	4
29	1
30	6
31	1
32	3
33	3
34	2
35	3
36	3
37	1
38	2
39	3
40	4
41	1
42	6
43	1
44	4
45	4
46	2
47	1
48	5
49	2
50	4
51	3
52	4
53	1
54	4
55	3
56	4
57	3
58	2
59	1
60	8
61	1
62	2
63	4
64	4
65	3
66	6
67	1
68	4
69	3
70	6
71	1
72	3
73	1
74	2
75	5
76	4
77	3
78	6
79	1
80	5
81	3
82	2
83	1
84	8
85	3
86	2
87	3
88	4
89	1
90	8
91	3
92	4

[0, 0, 1, 1, 1, 2, 1, 1, 1, 2, 1, 3, 1, 2, 3, 2, 1, 2, 1, 4, 3, 2, 1, 3, 2, 2, 2, 4, 1, 6, 1, 3, 3, 2, 3, 3, 1, 2, 3, 4, 1, 6, 1, 4, 4, 2, 1, 5, 2, 4, 3, 4, 1, 4, 3, 4, 3, 2, 1, 8, 1, 2, 4, 4, 3, 6, 1, 4, 3, 6, 1, 3, 1, 2, 5, 4, 3, 6, 1, 5, 3, 2, 1, 8, 3, 2, 3, 4, 1, 8, 3, 4]

cp's OEIS Frontend

A349658 Number of nonrefactorable divisors of n.

Table of values

List of values

n	a(n)
1	0
2	0
3	1
4	1
5	1
6	2
7	1
8	1
9	1
10	2
11	1
12	3
13	1
14	2
15	3
16	2
17	1
18	2
19	1
20	4
21	3
22	2
23	1
24	3
25	2
26	2
27	2
28	4
29	1
30	6
31	1
32	3
33	3
34	2
35	3
36	3
37	1
38	2
39	3
40	4
41	1
42	6
43	1
44	4
45	4
46	2
47	1
48	5
49	2
50	4
51	3
52	4
53	1
54	4
55	3
56	4
57	3
58	2
59	1
60	8
61	1
62	2
63	4
64	4
65	3
66	6
67	1
68	4
69	3
70	6
71	1
72	3
73	1
74	2
75	5
76	4
77	3
78	6
79	1
80	5
81	3
82	2
83	1
84	8
85	3
86	2
87	3
88	4
89	1
90	8
91	3
92	4

n	a(n)
1	0
2	0
3	1
4	1
5	1
6	2
7	1
8	1
9	1
10	2
11	1
12	3
13	1
14	2
15	3
16	2
17	1
18	2
19	1
20	4
21	3
22	2
23	1
24	3
25	2
26	2
27	2
28	4
29	1
30	6
31	1
32	3
33	3
34	2
35	3
36	3
37	1
38	2
39	3
40	4
41	1
42	6
43	1
44	4
45	4
46	2
47	1
48	5
49	2
50	4
51	3
52	4
53	1
54	4
55	3
56	4
57	3
58	2
59	1
60	8
61	1
62	2
63	4
64	4
65	3
66	6
67	1
68	4
69	3
70	6
71	1
72	3
73	1
74	2
75	5
76	4
77	3
78	6
79	1
80	5
81	3
82	2
83	1
84	8
85	3
86	2
87	3
88	4
89	1
90	8
91	3
92	4

n	a(n)
1	0
2	0
3	1
4	1
5	1
6	2
7	1
8	1
9	1
10	2
11	1
12	3
13	1
14	2
15	3
16	2
17	1
18	2
19	1
20	4
21	3
22	2
23	1
24	3
25	2
26	2
27	2
28	4
29	1
30	6
31	1
32	3
33	3
34	2
35	3
36	3
37	1
38	2
39	3
40	4
41	1
42	6
43	1
44	4
45	4
46	2
47	1
48	5
49	2
50	4
51	3
52	4
53	1
54	4
55	3
56	4
57	3
58	2
59	1
60	8
61	1
62	2
63	4
64	4
65	3
66	6
67	1
68	4
69	3
70	6
71	1
72	3
73	1
74	2
75	5
76	4
77	3
78	6
79	1
80	5
81	3
82	2
83	1
84	8
85	3
86	2
87	3
88	4
89	1
90	8
91	3
92	4