A099301 - cp's OEIS frontend

A099301 Arithmetic derivative of d(n), the number of divisors of n.

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	4
7	1
8	4
9	1
10	4
11	1
12	5
13	1
14	4
15	4
16	1
17	1
18	5
19	1
20	5
21	4
22	4
23	1
24	12
25	1
26	4
27	4
28	5
29	1
30	12
31	1
32	5
33	4
34	4
35	4
36	6
37	1
38	4
39	4
40	12
41	1
42	12
43	1
44	5
45	5
46	4
47	1
48	7
49	1
50	5
51	4
52	5
53	1
54	12
55	4
56	12
57	4
58	4
59	1
60	16
61	1
62	4
63	5
64	1
65	4
66	12
67	1
68	5
69	4
70	12
71	1
72	16
73	1
74	4
75	5
76	5
77	4
78	12
79	1
80	7
81	1
82	4
83	1
84	16
85	4
86	4
87	4
88	12
89	1
90	16
91	4
92	5
93	4
94	4
95	4
96	16
97	1
98	5

[0, 1, 1, 1, 1, 4, 1, 4, 1, 4, 1, 5, 1, 4, 4, 1, 1, 5, 1, 5, 4, 4, 1, 12, 1, 4, 4, 5, 1, 12, 1, 5, 4, 4, 4, 6, 1, 4, 4, 12, 1, 12, 1, 5, 5, 4, 1, 7, 1, 5, 4, 5, 1, 12, 4, 12, 4, 4, 1, 16, 1, 4, 5, 1, 4, 12, 1, 5, 4, 12, 1, 16, 1, 4, 5, 5, 4, 12, 1, 7, 1, 4, 1, 16, 4, 4, 4, 12, 1, 16, 4, 5, 4, 4, 4, 16, 1, 5]

cp's OEIS Frontend

A099301 Arithmetic derivative of d(n), the number of divisors of n.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	4
7	1
8	4
9	1
10	4
11	1
12	5
13	1
14	4
15	4
16	1
17	1
18	5
19	1
20	5
21	4
22	4
23	1
24	12
25	1
26	4
27	4
28	5
29	1
30	12
31	1
32	5
33	4
34	4
35	4
36	6
37	1
38	4
39	4
40	12
41	1
42	12
43	1
44	5
45	5
46	4
47	1
48	7
49	1
50	5
51	4
52	5
53	1
54	12
55	4
56	12
57	4
58	4
59	1
60	16
61	1
62	4
63	5
64	1
65	4
66	12
67	1
68	5
69	4
70	12
71	1
72	16
73	1
74	4
75	5
76	5
77	4
78	12
79	1
80	7
81	1
82	4
83	1
84	16
85	4
86	4
87	4
88	12
89	1
90	16
91	4
92	5
93	4
94	4
95	4
96	16
97	1
98	5

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	4
7	1
8	4
9	1
10	4
11	1
12	5
13	1
14	4
15	4
16	1
17	1
18	5
19	1
20	5
21	4
22	4
23	1
24	12
25	1
26	4
27	4
28	5
29	1
30	12
31	1
32	5
33	4
34	4
35	4
36	6
37	1
38	4
39	4
40	12
41	1
42	12
43	1
44	5
45	5
46	4
47	1
48	7
49	1
50	5
51	4
52	5
53	1
54	12
55	4
56	12
57	4
58	4
59	1
60	16
61	1
62	4
63	5
64	1
65	4
66	12
67	1
68	5
69	4
70	12
71	1
72	16
73	1
74	4
75	5
76	5
77	4
78	12
79	1
80	7
81	1
82	4
83	1
84	16
85	4
86	4
87	4
88	12
89	1
90	16
91	4
92	5
93	4
94	4
95	4
96	16
97	1
98	5

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	4
7	1
8	4
9	1
10	4
11	1
12	5
13	1
14	4
15	4
16	1
17	1
18	5
19	1
20	5
21	4
22	4
23	1
24	12
25	1
26	4
27	4
28	5
29	1
30	12
31	1
32	5
33	4
34	4
35	4
36	6
37	1
38	4
39	4
40	12
41	1
42	12
43	1
44	5
45	5
46	4
47	1
48	7
49	1
50	5
51	4
52	5
53	1
54	12
55	4
56	12
57	4
58	4
59	1
60	16
61	1
62	4
63	5
64	1
65	4
66	12
67	1
68	5
69	4
70	12
71	1
72	16
73	1
74	4
75	5
76	5
77	4
78	12
79	1
80	7
81	1
82	4
83	1
84	16
85	4
86	4
87	4
88	12
89	1
90	16
91	4
92	5
93	4
94	4
95	4
96	16
97	1
98	5