A318675 - cp's OEIS frontend

A318675 Sum of squarefree divisors of n that have an odd number of prime factors.

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

[0, 2, 3, 2, 5, 5, 7, 2, 3, 7, 11, 5, 13, 9, 8, 2, 17, 5, 19, 7, 10, 13, 23, 5, 5, 15, 3, 9, 29, 40, 31, 2, 14, 19, 12, 5, 37, 21, 16, 7, 41, 54, 43, 13, 8, 25, 47, 5, 7, 7, 20, 15, 53, 5, 16, 9, 22, 31, 59, 40, 61, 33, 10, 2, 18, 82, 67, 19, 26, 84, 71, 5, 73, 39, 8, 21, 18, 96, 79, 7, 3, 43, 83, 54, 22, 45, 32, 13, 89, 40, 20, 25, 34, 49, 24, 5]

cp's OEIS Frontend

A318675 Sum of squarefree divisors of n that have an odd number of prime factors.

Table of values

List of values

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

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

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