A378547 - cp's OEIS frontend

A378547 a(n) is the sum of the divisors d of n for which A083345(n/d) is odd, where A083345(n) is the numerator of Sum(e/p: n=Product(p^e)).

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	6
7	1
8	7
9	3
10	8
11	1
12	15
13	1
14	10
15	8
16	14
17	1
18	19
19	1
20	21
21	10
22	14
23	1
24	34
25	5
26	16
27	10
28	27
29	1
30	40
31	1
32	29
33	14
34	20
35	12
36	48
37	1
38	22
39	16
40	48
41	1
42	52
43	1
44	39
45	25
46	26
47	1
48	69
49	7
50	41
51	20
52	45
53	1
54	60
55	16
56	62
57	22
58	32
59	1
60	96
61	1
62	34
63	31
64	59
65	18
66	76
67	1
68	57
69	26
70	72
71	1
72	109
73	1
74	40
75	41
76	63
77	18
78	88
79	1
80	97
81	30
82	44
83	1
84	126
85	22
86	46
87	32

[0, 1, 1, 3, 1, 6, 1, 7, 3, 8, 1, 15, 1, 10, 8, 14, 1, 19, 1, 21, 10, 14, 1, 34, 5, 16, 10, 27, 1, 40, 1, 29, 14, 20, 12, 48, 1, 22, 16, 48, 1, 52, 1, 39, 25, 26, 1, 69, 7, 41, 20, 45, 1, 60, 16, 62, 22, 32, 1, 96, 1, 34, 31, 59, 18, 76, 1, 57, 26, 72, 1, 109, 1, 40, 41, 63, 18, 88, 1, 97, 30, 44, 1, 126, 22, 46, 32]

cp's OEIS Frontend

A378547 a(n) is the sum of the divisors d of n for which A083345(n/d) is odd, where A083345(n) is the numerator of Sum(e/p: n=Product(p^e)).

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	6
7	1
8	7
9	3
10	8
11	1
12	15
13	1
14	10
15	8
16	14
17	1
18	19
19	1
20	21
21	10
22	14
23	1
24	34
25	5
26	16
27	10
28	27
29	1
30	40
31	1
32	29
33	14
34	20
35	12
36	48
37	1
38	22
39	16
40	48
41	1
42	52
43	1
44	39
45	25
46	26
47	1
48	69
49	7
50	41
51	20
52	45
53	1
54	60
55	16
56	62
57	22
58	32
59	1
60	96
61	1
62	34
63	31
64	59
65	18
66	76
67	1
68	57
69	26
70	72
71	1
72	109
73	1
74	40
75	41
76	63
77	18
78	88
79	1
80	97
81	30
82	44
83	1
84	126
85	22
86	46
87	32

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	6
7	1
8	7
9	3
10	8
11	1
12	15
13	1
14	10
15	8
16	14
17	1
18	19
19	1
20	21
21	10
22	14
23	1
24	34
25	5
26	16
27	10
28	27
29	1
30	40
31	1
32	29
33	14
34	20
35	12
36	48
37	1
38	22
39	16
40	48
41	1
42	52
43	1
44	39
45	25
46	26
47	1
48	69
49	7
50	41
51	20
52	45
53	1
54	60
55	16
56	62
57	22
58	32
59	1
60	96
61	1
62	34
63	31
64	59
65	18
66	76
67	1
68	57
69	26
70	72
71	1
72	109
73	1
74	40
75	41
76	63
77	18
78	88
79	1
80	97
81	30
82	44
83	1
84	126
85	22
86	46
87	32

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	6
7	1
8	7
9	3
10	8
11	1
12	15
13	1
14	10
15	8
16	14
17	1
18	19
19	1
20	21
21	10
22	14
23	1
24	34
25	5
26	16
27	10
28	27
29	1
30	40
31	1
32	29
33	14
34	20
35	12
36	48
37	1
38	22
39	16
40	48
41	1
42	52
43	1
44	39
45	25
46	26
47	1
48	69
49	7
50	41
51	20
52	45
53	1
54	60
55	16
56	62
57	22
58	32
59	1
60	96
61	1
62	34
63	31
64	59
65	18
66	76
67	1
68	57
69	26
70	72
71	1
72	109
73	1
74	40
75	41
76	63
77	18
78	88
79	1
80	97
81	30
82	44
83	1
84	126
85	22
86	46
87	32