A276833 - cp's OEIS frontend

A276833 Sum of mu(d)*phi(d) over divisors d of n.

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

[1, 0, -1, 0, -3, 0, -5, 0, -1, 0, -9, 0, -11, 0, 3, 0, -15, 0, -17, 0, 5, 0, -21, 0, -3, 0, -1, 0, -27, 0, -29, 0, 9, 0, 15, 0, -35, 0, 11, 0, -39, 0, -41, 0, 3, 0, -45, 0, -5, 0, 15, 0, -51, 0, 27, 0, 17, 0, -57, 0, -59, 0, 5, 0, 33, 0, -65, 0, 21, 0, -69, 0, -71, 0, 3, 0, 45, 0, -77, 0, -1, 0, -81, 0, 45, 0, 27, 0, -87, 0, 55, 0, 29, 0, 51, 0, -95, 0, 9]

cp's OEIS Frontend

A276833 Sum of mu(d)*phi(d) over divisors d of n.

Table of values

List of values

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

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

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