A293575 - cp's OEIS frontend

A293575 Difference between the number of proper divisors of n and the number of squares dividing n.

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

[-1, 0, 0, 0, 0, 2, 0, 1, 0, 2, 0, 3, 0, 2, 2, 1, 0, 3, 0, 3, 2, 2, 0, 5, 0, 2, 1, 3, 0, 6, 0, 2, 2, 2, 2, 4, 0, 2, 2, 5, 0, 6, 0, 3, 3, 2, 0, 6, 0, 3, 2, 3, 0, 5, 2, 5, 2, 2, 0, 9, 0, 2, 3, 2, 2, 6, 0, 3, 2, 6, 0, 7, 0, 2, 3, 3, 2, 6, 0, 6, 1, 2, 0, 9, 2, 2, 2, 5, 0, 9, 2, 3, 2, 2, 2, 8, 0, 3, 3, 4, 0, 6, 0, 5, 6]

cp's OEIS Frontend

A293575 Difference between the number of proper divisors of n and the number of squares dividing n.

Table of values

List of values

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

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

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