A364858 - cp's OEIS frontend

A364858 a(n) = Sum_{d|n, d < n, d in S} d, where S is the set defined in A118372.

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	6
7	1
8	7
9	4
10	8
11	1
12	16
13	1
14	10
15	9
16	15
17	1
18	21
19	1
20	22
21	11
22	14
23	1
24	24
25	6
26	16
27	13
28	28
29	1
30	42
31	1
32	31
33	15
34	20
35	13
36	25
37	1
38	22
39	17
40	30
41	1
42	54
43	1
44	40
45	33
46	26
47	1
48	64
49	8
50	43
51	21
52	46
53	1
54	48
55	17
56	64
57	23
58	32
59	1
60	46
61	1
62	34
63	41
64	63
65	19
66	78
67	1
68	58
69	27
70	74
71	1
72	93
73	1

[0, 1, 1, 3, 1, 6, 1, 7, 4, 8, 1, 16, 1, 10, 9, 15, 1, 21, 1, 22, 11, 14, 1, 24, 6, 16, 13, 28, 1, 42, 1, 31, 15, 20, 13, 25, 1, 22, 17, 30, 1, 54, 1, 40, 33, 26, 1, 64, 8, 43, 21, 46, 1, 48, 17, 64, 23, 32, 1, 46, 1, 34, 41, 63, 19, 78, 1, 58, 27, 74, 1, 93, 1]

cp's OEIS Frontend

A364858 a(n) = Sum_{d|n, d < n, d in S} d, where S is the set defined in A118372.

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	4
10	8
11	1
12	16
13	1
14	10
15	9
16	15
17	1
18	21
19	1
20	22
21	11
22	14
23	1
24	24
25	6
26	16
27	13
28	28
29	1
30	42
31	1
32	31
33	15
34	20
35	13
36	25
37	1
38	22
39	17
40	30
41	1
42	54
43	1
44	40
45	33
46	26
47	1
48	64
49	8
50	43
51	21
52	46
53	1
54	48
55	17
56	64
57	23
58	32
59	1
60	46
61	1
62	34
63	41
64	63
65	19
66	78
67	1
68	58
69	27
70	74
71	1
72	93
73	1

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	6
7	1
8	7
9	4
10	8
11	1
12	16
13	1
14	10
15	9
16	15
17	1
18	21
19	1
20	22
21	11
22	14
23	1
24	24
25	6
26	16
27	13
28	28
29	1
30	42
31	1
32	31
33	15
34	20
35	13
36	25
37	1
38	22
39	17
40	30
41	1
42	54
43	1
44	40
45	33
46	26
47	1
48	64
49	8
50	43
51	21
52	46
53	1
54	48
55	17
56	64
57	23
58	32
59	1
60	46
61	1
62	34
63	41
64	63
65	19
66	78
67	1
68	58
69	27
70	74
71	1
72	93
73	1

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	6
7	1
8	7
9	4
10	8
11	1
12	16
13	1
14	10
15	9
16	15
17	1
18	21
19	1
20	22
21	11
22	14
23	1
24	24
25	6
26	16
27	13
28	28
29	1
30	42
31	1
32	31
33	15
34	20
35	13
36	25
37	1
38	22
39	17
40	30
41	1
42	54
43	1
44	40
45	33
46	26
47	1
48	64
49	8
50	43
51	21
52	46
53	1
54	48
55	17
56	64
57	23
58	32
59	1
60	46
61	1
62	34
63	41
64	63
65	19
66	78
67	1
68	58
69	27
70	74
71	1
72	93
73	1