A348915 - cp's OEIS frontend

A348915 a(n) = Sum_{d|n} d^(d mod 2).

n	a(n)
1	1
2	2
3	4
4	3
5	6
6	6
7	8
8	4
9	13
10	8
11	12
12	8
13	14
14	10
15	24
16	5
17	18
18	16
19	20
20	10
21	32
22	14
23	24
24	10
25	31
26	16
27	40
28	12
29	30
30	28
31	32
32	6
33	48
34	20
35	48
36	19
37	38
38	22
39	56
40	12
41	42
42	36
43	44
44	16
45	78
46	26
47	48
48	12
49	57
50	34
51	72
52	18
53	54
54	44
55	72
56	14
57	80
58	32
59	60
60	32
61	62
62	34
63	104
64	7
65	84
66	52
67	68
68	22
69	96
70	52
71	72
72	22
73	74

[1, 2, 4, 3, 6, 6, 8, 4, 13, 8, 12, 8, 14, 10, 24, 5, 18, 16, 20, 10, 32, 14, 24, 10, 31, 16, 40, 12, 30, 28, 32, 6, 48, 20, 48, 19, 38, 22, 56, 12, 42, 36, 44, 16, 78, 26, 48, 12, 57, 34, 72, 18, 54, 44, 72, 14, 80, 32, 60, 32, 62, 34, 104, 7, 84, 52, 68, 22, 96, 52, 72, 22, 74]

cp's OEIS Frontend

A348915 a(n) = Sum_{d|n} d^(d mod 2).

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	3
5	6
6	6
7	8
8	4
9	13
10	8
11	12
12	8
13	14
14	10
15	24
16	5
17	18
18	16
19	20
20	10
21	32
22	14
23	24
24	10
25	31
26	16
27	40
28	12
29	30
30	28
31	32
32	6
33	48
34	20
35	48
36	19
37	38
38	22
39	56
40	12
41	42
42	36
43	44
44	16
45	78
46	26
47	48
48	12
49	57
50	34
51	72
52	18
53	54
54	44
55	72
56	14
57	80
58	32
59	60
60	32
61	62
62	34
63	104
64	7
65	84
66	52
67	68
68	22
69	96
70	52
71	72
72	22
73	74

n	a(n)
1	1
2	2
3	4
4	3
5	6
6	6
7	8
8	4
9	13
10	8
11	12
12	8
13	14
14	10
15	24
16	5
17	18
18	16
19	20
20	10
21	32
22	14
23	24
24	10
25	31
26	16
27	40
28	12
29	30
30	28
31	32
32	6
33	48
34	20
35	48
36	19
37	38
38	22
39	56
40	12
41	42
42	36
43	44
44	16
45	78
46	26
47	48
48	12
49	57
50	34
51	72
52	18
53	54
54	44
55	72
56	14
57	80
58	32
59	60
60	32
61	62
62	34
63	104
64	7
65	84
66	52
67	68
68	22
69	96
70	52
71	72
72	22
73	74

n	a(n)
1	1
2	2
3	4
4	3
5	6
6	6
7	8
8	4
9	13
10	8
11	12
12	8
13	14
14	10
15	24
16	5
17	18
18	16
19	20
20	10
21	32
22	14
23	24
24	10
25	31
26	16
27	40
28	12
29	30
30	28
31	32
32	6
33	48
34	20
35	48
36	19
37	38
38	22
39	56
40	12
41	42
42	36
43	44
44	16
45	78
46	26
47	48
48	12
49	57
50	34
51	72
52	18
53	54
54	44
55	72
56	14
57	80
58	32
59	60
60	32
61	62
62	34
63	104
64	7
65	84
66	52
67	68
68	22
69	96
70	52
71	72
72	22
73	74