A378597 - cp's OEIS frontend

A378597 Möbius transform of A378450, where A378450 is the number of positive numbers k <= sigma(n) that are not a sum of any subset of distinct divisors of n.

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

[0, 0, 1, 0, 3, -1, 5, 0, 5, 0, 9, 0, 11, 4, 5, 0, 15, -5, 17, -3, 11, 12, 21, 0, 21, 16, 19, -9, 27, -8, 29, 0, 23, 24, 25, 0, 35, 28, 29, 0, 39, -20, 41, 0, 9, 36, 45, 0, 45, 6, 41, 8, 51, -19, 45, 0, 47, 48, 57, 3, 59, 52, 23, 0, 55, -44, 65, 24, 59, -35, 69, 0, 71, 64, 31, 32, 67, -56, 77, 0, 65, 72, 81, 9, 75, 76, 77, -21]

cp's OEIS Frontend

A378597 Möbius transform of A378450, where A378450 is the number of positive numbers k <= sigma(n) that are not a sum of any subset of distinct divisors of n.

Table of values

List of values

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

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

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