A378526 - cp's OEIS frontend

A378526 Dirichlet inverse of A378548, where A378548 is the sum of divisors d of n such that n/d is odd with an even number of prime factors (counted with multiplicity).

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

[1, -2, -3, 0, -5, 6, -7, 0, -1, 10, -11, 0, -13, 14, 14, 0, -17, 2, -19, 0, 20, 22, -23, 0, -1, 26, 3, 0, -29, -28, -31, 0, 32, 34, 34, 0, -37, 38, 38, 0, -41, -40, -43, 0, 8, 46, -47, 0, -1, 2, 50, 0, -53, -6, 54, 0, 56, 58, -59, 0, -61, 62, 10, 0, 64, -64, -67, 0, 68, -68, -71, 0, -73, 74, 8, 0, 76, -76, -79, 0, 0, 82]

cp's OEIS Frontend

A378526 Dirichlet inverse of A378548, where A378548 is the sum of divisors d of n such that n/d is odd with an even number of prime factors (counted with multiplicity).

Table of values

List of values

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

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

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