A059247 - cp's OEIS frontend

A059247 Denominator of Sum_{j=1..n} d(j)/n, where d = number of divisors function (A000005).

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

[1, 2, 3, 1, 1, 3, 7, 2, 9, 10, 11, 12, 13, 14, 1, 8, 17, 9, 19, 10, 3, 11, 23, 2, 25, 2, 27, 28, 29, 10, 31, 32, 11, 34, 35, 9, 37, 19, 13, 20, 41, 1, 43, 1, 45, 23, 1, 8, 49, 50, 51, 52, 53, 54, 5, 56, 19, 58, 59, 20, 61, 62, 3, 8, 65, 33, 67, 17, 69, 35, 71]

cp's OEIS Frontend

A059247 Denominator of Sum_{j=1..n} d(j)/n, where d = number of divisors function (A000005).

Table of values

List of values

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

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

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