A385628 - cp's OEIS frontend

A385628 Sum of the divisors d of n with an even number of primes not exceeding d.

n	a(n)
1	1
2	1
3	4
4	5
5	1
6	4
7	8
8	13
9	13
10	11
11	1
12	8
13	14
14	22
15	19
16	29
17	1
18	13
19	20
20	35
21	32
22	23
23	1
24	16
25	1
26	14
27	13
28	26
29	30
30	59
31	1
32	29
33	4
34	1
35	8
36	17
37	38
38	58
39	56
40	83
41	1
42	46
43	44
44	71
45	73
46	47
47	1
48	32
49	8
50	11
51	4
52	18
53	54
54	67
55	56
56	90
57	80
58	88
59	1
60	83
61	62
62	63
63	104
64	93
65	79
66	92
67	1
68	5
69	4
70	32
71	72
72	97
73	1
74	38
75	19
76	62
77	8
78	56
79	80
80	179
81	94
82	83
83	1
84	50
85	1
86	44
87	33
88	79
89	90
90	203
91	112
92	143
93	97
94	95
95	115

[1, 1, 4, 5, 1, 4, 8, 13, 13, 11, 1, 8, 14, 22, 19, 29, 1, 13, 20, 35, 32, 23, 1, 16, 1, 14, 13, 26, 30, 59, 1, 29, 4, 1, 8, 17, 38, 58, 56, 83, 1, 46, 44, 71, 73, 47, 1, 32, 8, 11, 4, 18, 54, 67, 56, 90, 80, 88, 1, 83, 62, 63, 104, 93, 79, 92, 1, 5, 4, 32, 72, 97, 1, 38, 19, 62, 8, 56, 80, 179, 94, 83, 1, 50, 1, 44, 33, 79, 90, 203, 112, 143, 97, 95, 115]

cp's OEIS Frontend

A385628 Sum of the divisors d of n with an even number of primes not exceeding d.

Table of values

List of values

n	a(n)
1	1
2	1
3	4
4	5
5	1
6	4
7	8
8	13
9	13
10	11
11	1
12	8
13	14
14	22
15	19
16	29
17	1
18	13
19	20
20	35
21	32
22	23
23	1
24	16
25	1
26	14
27	13
28	26
29	30
30	59
31	1
32	29
33	4
34	1
35	8
36	17
37	38
38	58
39	56
40	83
41	1
42	46
43	44
44	71
45	73
46	47
47	1
48	32
49	8
50	11
51	4
52	18
53	54
54	67
55	56
56	90
57	80
58	88
59	1
60	83
61	62
62	63
63	104
64	93
65	79
66	92
67	1
68	5
69	4
70	32
71	72
72	97
73	1
74	38
75	19
76	62
77	8
78	56
79	80
80	179
81	94
82	83
83	1
84	50
85	1
86	44
87	33
88	79
89	90
90	203
91	112
92	143
93	97
94	95
95	115

n	a(n)
1	1
2	1
3	4
4	5
5	1
6	4
7	8
8	13
9	13
10	11
11	1
12	8
13	14
14	22
15	19
16	29
17	1
18	13
19	20
20	35
21	32
22	23
23	1
24	16
25	1
26	14
27	13
28	26
29	30
30	59
31	1
32	29
33	4
34	1
35	8
36	17
37	38
38	58
39	56
40	83
41	1
42	46
43	44
44	71
45	73
46	47
47	1
48	32
49	8
50	11
51	4
52	18
53	54
54	67
55	56
56	90
57	80
58	88
59	1
60	83
61	62
62	63
63	104
64	93
65	79
66	92
67	1
68	5
69	4
70	32
71	72
72	97
73	1
74	38
75	19
76	62
77	8
78	56
79	80
80	179
81	94
82	83
83	1
84	50
85	1
86	44
87	33
88	79
89	90
90	203
91	112
92	143
93	97
94	95
95	115

n	a(n)
1	1
2	1
3	4
4	5
5	1
6	4
7	8
8	13
9	13
10	11
11	1
12	8
13	14
14	22
15	19
16	29
17	1
18	13
19	20
20	35
21	32
22	23
23	1
24	16
25	1
26	14
27	13
28	26
29	30
30	59
31	1
32	29
33	4
34	1
35	8
36	17
37	38
38	58
39	56
40	83
41	1
42	46
43	44
44	71
45	73
46	47
47	1
48	32
49	8
50	11
51	4
52	18
53	54
54	67
55	56
56	90
57	80
58	88
59	1
60	83
61	62
62	63
63	104
64	93
65	79
66	92
67	1
68	5
69	4
70	32
71	72
72	97
73	1
74	38
75	19
76	62
77	8
78	56
79	80
80	179
81	94
82	83
83	1
84	50
85	1
86	44
87	33
88	79
89	90
90	203
91	112
92	143
93	97
94	95
95	115