A318674 - cp's OEIS frontend

A318674 Sum of squarefree divisors of n that have an even number of prime factors.

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

[1, 1, 1, 1, 1, 7, 1, 1, 1, 11, 1, 7, 1, 15, 16, 1, 1, 7, 1, 11, 22, 23, 1, 7, 1, 27, 1, 15, 1, 32, 1, 1, 34, 35, 36, 7, 1, 39, 40, 11, 1, 42, 1, 23, 16, 47, 1, 7, 1, 11, 52, 27, 1, 7, 56, 15, 58, 59, 1, 32, 1, 63, 22, 1, 66, 62, 1, 35, 70, 60, 1, 7, 1, 75, 16, 39, 78, 72, 1, 11, 1, 83, 1, 42, 86, 87, 88, 23, 1, 32, 92, 47]

cp's OEIS Frontend

A318674 Sum of squarefree divisors of n that have an even number of prime factors.

Table of values

List of values

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

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

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