A347494 - cp's OEIS frontend

A347494 a(n) is the number of instances where tau(k)|tau(n); n>=1, k where tau is the divisor counting function A000005.

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

[0, 1, 2, 1, 3, 4, 4, 6, 2, 7, 5, 8, 6, 10, 11, 1, 7, 11, 8, 13, 14, 15, 9, 17, 3, 17, 18, 16, 10, 21, 11, 19, 21, 22, 23, 4, 12, 25, 26, 29, 13, 31, 14, 23, 24, 29, 15, 17, 4, 27, 31, 28, 16, 37, 33, 39, 34, 35, 17, 50, 18, 38, 32, 1, 39, 46, 19, 34, 41, 49, 20, 59]

cp's OEIS Frontend

A347494 a(n) is the number of instances where tau(k)|tau(n); n>=1, k where tau is the divisor counting function A000005.

Table of values

List of values

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

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

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