A054009 - cp's OEIS frontend

A054009 n read modulo (number of proper divisors of n).

n	a(n)
2	0
3	0
4	0
5	0
6	0
7	0
8	2
9	1
10	1
11	0
12	2
13	0
14	2
15	0
16	0
17	0
18	3
19	0
20	0
21	0
22	1
23	0
24	3
25	1
26	2
27	0
28	3
29	0
30	2
31	0
32	2
33	0
34	1
35	2
36	4
37	0
38	2
39	0
40	5
41	0
42	0
43	0
44	4
45	0
46	1
47	0
48	3
49	1
50	0
51	0
52	2
53	0
54	5
55	1
56	0
57	0
58	1
59	0
60	5
61	0
62	2
63	3
64	4
65	2
66	3
67	0
68	3
69	0
70	0
71	0
72	6
73	0
74	2
75	0
76	1
77	2
78	1
79	0
80	8
81	1
82	1
83	0
84	7
85	1
86	2
87	0
88	4
89	0
90	2
91	1
92	2
93	0
94	1
95	2
96	8
97	0
98	3
99	4
100	4
101	0
102	4
103	0
104	6
105	0
106	1

[0, 0, 0, 0, 0, 0, 2, 1, 1, 0, 2, 0, 2, 0, 0, 0, 3, 0, 0, 0, 1, 0, 3, 1, 2, 0, 3, 0, 2, 0, 2, 0, 1, 2, 4, 0, 2, 0, 5, 0, 0, 0, 4, 0, 1, 0, 3, 1, 0, 0, 2, 0, 5, 1, 0, 0, 1, 0, 5, 0, 2, 3, 4, 2, 3, 0, 3, 0, 0, 0, 6, 0, 2, 0, 1, 2, 1, 0, 8, 1, 1, 0, 7, 1, 2, 0, 4, 0, 2, 1, 2, 0, 1, 2, 8, 0, 3, 4, 4, 0, 4, 0, 6, 0, 1]

cp's OEIS Frontend

A054009 n read modulo (number of proper divisors of n).

Table of values

List of values

n	a(n)
2	0
3	0
4	0
5	0
6	0
7	0
8	2
9	1
10	1
11	0
12	2
13	0
14	2
15	0
16	0
17	0
18	3
19	0
20	0
21	0
22	1
23	0
24	3
25	1
26	2
27	0
28	3
29	0
30	2
31	0
32	2
33	0
34	1
35	2
36	4
37	0
38	2
39	0
40	5
41	0
42	0
43	0
44	4
45	0
46	1
47	0
48	3
49	1
50	0
51	0
52	2
53	0
54	5
55	1
56	0
57	0
58	1
59	0
60	5
61	0
62	2
63	3
64	4
65	2
66	3
67	0
68	3
69	0
70	0
71	0
72	6
73	0
74	2
75	0
76	1
77	2
78	1
79	0
80	8
81	1
82	1
83	0
84	7
85	1
86	2
87	0
88	4
89	0
90	2
91	1
92	2
93	0
94	1
95	2
96	8
97	0
98	3
99	4
100	4
101	0
102	4
103	0
104	6
105	0
106	1

n	a(n)
2	0
3	0
4	0
5	0
6	0
7	0
8	2
9	1
10	1
11	0
12	2
13	0
14	2
15	0
16	0
17	0
18	3
19	0
20	0
21	0
22	1
23	0
24	3
25	1
26	2
27	0
28	3
29	0
30	2
31	0
32	2
33	0
34	1
35	2
36	4
37	0
38	2
39	0
40	5
41	0
42	0
43	0
44	4
45	0
46	1
47	0
48	3
49	1
50	0
51	0
52	2
53	0
54	5
55	1
56	0
57	0
58	1
59	0
60	5
61	0
62	2
63	3
64	4
65	2
66	3
67	0
68	3
69	0
70	0
71	0
72	6
73	0
74	2
75	0
76	1
77	2
78	1
79	0
80	8
81	1
82	1
83	0
84	7
85	1
86	2
87	0
88	4
89	0
90	2
91	1
92	2
93	0
94	1
95	2
96	8
97	0
98	3
99	4
100	4
101	0
102	4
103	0
104	6
105	0
106	1

n	a(n)
2	0
3	0
4	0
5	0
6	0
7	0
8	2
9	1
10	1
11	0
12	2
13	0
14	2
15	0
16	0
17	0
18	3
19	0
20	0
21	0
22	1
23	0
24	3
25	1
26	2
27	0
28	3
29	0
30	2
31	0
32	2
33	0
34	1
35	2
36	4
37	0
38	2
39	0
40	5
41	0
42	0
43	0
44	4
45	0
46	1
47	0
48	3
49	1
50	0
51	0
52	2
53	0
54	5
55	1
56	0
57	0
58	1
59	0
60	5
61	0
62	2
63	3
64	4
65	2
66	3
67	0
68	3
69	0
70	0
71	0
72	6
73	0
74	2
75	0
76	1
77	2
78	1
79	0
80	8
81	1
82	1
83	0
84	7
85	1
86	2
87	0
88	4
89	0
90	2
91	1
92	2
93	0
94	1
95	2
96	8
97	0
98	3
99	4
100	4
101	0
102	4
103	0
104	6
105	0
106	1