A229341 - cp's OEIS frontend

A229341 a(n) = tau(n'), the number of divisors of the arithmetic derivative of n.

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

[1, 1, 3, 1, 2, 1, 6, 4, 2, 1, 5, 1, 3, 4, 6, 1, 4, 1, 8, 4, 2, 1, 6, 4, 4, 4, 6, 1, 2, 1, 10, 4, 2, 6, 12, 1, 4, 5, 6, 1, 2, 1, 10, 4, 3, 1, 10, 4, 6, 6, 8, 1, 5, 5, 6, 4, 2, 1, 6, 1, 4, 4, 14, 6, 2, 1, 12, 4, 2, 1, 12, 1, 4, 4, 10, 6, 2, 1, 10, 12, 2, 1, 6, 4, 6]

cp's OEIS Frontend

A229341 a(n) = tau(n'), the number of divisors of the arithmetic derivative of n.

Table of values

List of values

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

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

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