A318502 - cp's OEIS frontend

A318502 a(n) = SumXOR_{d|n} [moebius(n/d) < 0]*(sigma(d)-d).

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

[0, 0, 0, 1, 0, 0, 0, 3, 1, 0, 0, 5, 0, 0, 0, 7, 0, 2, 0, 11, 0, 0, 0, 23, 1, 0, 4, 9, 0, 7, 0, 15, 0, 0, 0, 5, 0, 0, 0, 17, 0, 7, 0, 13, 13, 0, 0, 43, 1, 14, 0, 19, 0, 24, 0, 27, 0, 0, 0, 45, 0, 0, 15, 31, 0, 7, 0, 23, 0, 15, 0, 19, 0, 0, 15, 21, 0, 7, 0, 61, 13, 0, 0, 59, 0, 0, 0, 47, 0, 31, 0, 25, 0, 0, 0, 83, 0, 2, 11, 61, 0, 7, 0, 41, 15]

cp's OEIS Frontend

A318502 a(n) = SumXOR_{d|n} [moebius(n/d) < 0]*(sigma(d)-d).

Table of values

List of values

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

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

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